Thin wall flared cylinders are lightweight and the flare spreads the pressure out at the base of your dick. Sizes available: 3" to 5"

Move up to professional and upscale Vacu-Tech equipment for maximum expansion. For durability all Expansion Cylinders are made of Lucite, the highest grade acrylic available. Vacu-Tech products are compatible with SF Pump & Kaplan equipment. Slide into the smooth, flared cylinder, and be firmly gripped in a perfect seal. When the optimum vacuum level is reached, our AirLock-Release Valve disconnects the pump, and retains the vacuum. Afterwards your hands will know the difference: your cock will be longer, thicker and heavier - especially in the flaccid state!

Accurate control is the difference with Vacu-Tech products!