Vac-U-Lock Silicone Pegging Set by Doc Johnson

Vac-U-Lock Silicone Pegging Set by Doc Johnson is a three-piece strap-on system with interchangeable silicone attachments designed for prostate play. Each attachment snaps securely into the harness via the patented Vac-U-Lock connection, letting you swap sizes mid-session without removing the harness. It's built for couples who want graduated intensity and instant adaptability.

What it is and how it's made

Vac-U-Lock Silicone Pegging Set by Doc Johnson is a complete harness-and-attachment system built around a snap-fit connection that lets you change prostate toys mid-session without undressing or adjusting straps. The three graduated silicone attachments—5", 6", and 7"—are all contoured to hit the prostate at the right angle, and each one snaps securely into the harness base with a vacuum-sealed click. The platinum silicone construction is body-safe, non-porous, and feels silky against the skin, making it comfortable for extended wear and straightforward to clean.

What sets this apart from single-attachment prostate toys is the instant adaptability built into its design. Most strap-on systems lock you into one size; this one lets you start gentle and escalate intensity without breaking the flow. The Supreme Harness distributes pressure evenly across the hips and inner thighs, so it stays comfortable even during intense sessions, and the universal Vac-U-Lock connection means you can add other compatible attachments later.

Features worth knowing

• Graduated sizing: Three attachments let beginners warm up with the 5", then explore the 6" and 7" as comfort and confidence grow, all within one session.
• Prostate-specific contours: Each attachment curves to massage the P-spot with every stroke, hitting the right angle without guesswork or repositioning.
• Instant attachment swapping: The Vac-U-Lock snap connection holds firm under pressure but releases instantly, so you can change sizes without removing the harness or stopping play.
• Complete system: Harness, three attachments, suction cup base for solo use, lubricant, and cleaning supplies all arrive together, ready to use straight from the box.
• Adjustable harness: Straps fasten securely across hips and thighs, distributing weight evenly so the system stays stable and comfortable throughout longer sessions.

The detail

• Material: Platinum silicone, non-porous, body-safe, and hypoallergenic; no latex or phthalates.
• Attachment dimensions: 5" long (1.75" insertable), 6" long (2.5" insertable), 7" long (3.25" insertable); all 1.5" diameter at the base.
• Harness: Supreme model with adjustable nylon straps, fits most adult waist and hip sizes with multiple adjustment points.
• Connection: Patented Vac-U-Lock snap-fit system; attachments lock and release with finger pressure only.
• Box contents: Harness, three silicone attachments, suction cup base with adapter, water-based lubricant (1 fl oz), microfibre cleaning cloth, instruction guide.
• Weight: Approximately 340 grams total with all attachments and base.

Working up to a silicone prostate toy comfortably

Begin with plenty of warm-up time and a generous amount of lubricant. Start with the 5" attachment, apply lubricant around the tip and inside the rectum, and let your body adjust to the sensation for a minute or two before any thrusting begins. Breathe slowly and relax your pelvic floor; tension makes insertion uncomfortable. Once you feel ready, begin with shallow, gentle strokes, gradually deepening as arousal builds. The prostate-contoured shape will naturally guide you toward the spot that feels best.

If you plan to work toward the 6" or 7" attachment during the same session, stay with the smaller size until you're fully aroused and relaxed. Steel Prostate Sex Toys transfer temperature differently than silicone, so switch between materials only after your body has adapted to the one you're using. The Vac-U-Lock connection lets you swap instantly once you're ready; simply ease out slightly, press the release, and snap on the next size. Communicate with your partner about pace and comfort throughout, and stop immediately if you feel sharp pain—mild pressure and sensation are normal, but pain means something is wrong.

Who it suits

Care and storage

Wash the harness and all silicone attachments with warm soapy water and a soft cloth immediately after use, paying attention to seams and the Vac-U-Lock connection point where lubricant can collect. Rinse thoroughly and air dry completely on a clean towel before storage. Store the set in a cool, dry place away from direct sunlight and heat; a closed drawer or fabric bag works well. Never store while damp, and keep attachments separate from the harness to prevent silicone from sticking. The suction cup base rinses easily but should also air dry fully before being stored.

Dig deeper

Prostate play is a skill that improves with knowledge and patience, not just hardware. Understanding your own arousal cycle, relaxation depth, and angle preferences will make any system work better. Read our guide on Funtoys Gpop Prostate Pleasure to learn how positioning and breathing alter sensation and build toward the most intense experiences.

What to expect

The Vac-U-Lock connection is genuinely secure; you will feel zero wobble or drift during thrusting, which means you can focus on angle and intensity rather than holding the attachment in place. The 1.5" diameter suits most users comfortably and is wide enough to deliver satisfying pressure without being difficult to insert when properly warmed up and lubricated. First-time users often underestimate how much lubricant is needed—apply more than you think, because the prostate-contoured shape demands smooth entry to feel good rather than uncomfortable.

Starting with the 5" attachment sets realistic expectations: it feels smaller than you might imagine when aroused, which is exactly why it works for warm-up. Many people discover they can handle the 7" after just one or two sessions of building comfort, but rushing that progression often leads to tension and disappointment. The graduated system exists because it works.

The harness stays comfortable for extended sessions and does not chafe when worn over skin or underwear, though some users prefer wearing it directly against the body for better connection and feedback. Cleaning is straightforward—silicone does not hold bacteria when washed properly—but make sure the Vac-U-Lock release point is completely dry before storing, or you risk a weak connection next time.

This system suits couples who enjoy communication and escalation in their play. It is less forgiving for people who want grab-and-go simplicity, because the graduated approach requires intention and awareness. If you know you want one size and will stick with it, a single attachment might suit you better. But for anyone who wants to grow their practice, the adaptability of this set becomes indispensable quickly.

How it compares

Why choose this one

Explore Vac-U-Lock Silicone Pegging Set by Doc Johnson when you want graduated intensity, instant adaptability, and professional-grade reliability all in one complete system. The three attachments and Supreme Harness grow with your confidence and comfort, while the snap-fit connection eliminates fiddling mid-play. Order it from Malechastity.com.au with discreet Australia-wide delivery. Start simple, escalate instantly, and experience prostate play the way it's meant to feel. Shipped Fast From Our Australian Warehouse.