Let your A-hole swell as a strong suction increases blood flow. Anal engorgement combined with penetration in this unique pump accessory. Simply fill your pouch hole with the flexible silicone beads, attach your compatible hose and pump, and start pressing to build pressure in the cylinder. Your anus will be sucked in and curl like a blooming rosebud. The four smooth bulbs of the anal beads provide additional stimulation as you increase the size and sensitivity of your hole. However, they can also be removed from the cylinder. Both materials are non-porous, durable, and can be thoroughly disinfected with mild soap or toy cleaner. Avoid using with silicone lubricants.