Ready for an ultra-comfortable pumping session or would you rather indulge in a some sensational solo play? Whatever you're craving, the Optimum™ Series Automatic Smart Pump™ Replacement sleeve is ready to take your pleasure to the next level. This ultra-stretchy, ultra-tight sleeve has an open-end design and intensely ribbed chamber for an intense stroking experience with truly explosive results. The premium sleeve fits into most standard pumps, but can be used independently for a passionate stroking experience. The premium TPE is a body safe, unscented and phthalate free to keep you most sensitive spots, happy and healthy. Enjoy easy clean up with this maintenance free stimulator sleeve, simply wash with soap and warm water before and after each use. Use ample lubricant for easy insertion.