

Adjustable vacuum stroker cup with graduated textures for stamina training. Pre-lubricated design for immediate use.
Key Features:
Adjustable vacuum pressure builds stamina through progressive resistance training
Body-safe phthalate-free materials ensure comfortable extended training sessions
Graduated internal textures create varying sensations for endurance building
Pre-lubricated design eliminates prep time and reduces friction discomfort
Lightweight 5-ounce build prevents hand fatigue during longer sessions