The HyperPump pump offers you ample possibilities for penile enhancement. The insertion sleeve is made of smooth silicone, ensuring a comfortable experience. Surprise yourself each time with how big you can get! At the touch of a button, the extremely powerful pump creates a super-strong vacuum, giving you quick and powerful erections. The soft silicone opening forms a tight yet comfortable seal, so you can enjoy its benefits around water without worry. - Product dimensions: 6.5 cm x 6.5 cm x 29.2 cm - Product weight: 316 grams - Product volume: 500 ml - Product diameter: 6.5 cm - Insertable length: 20 cm - Quantity motors: 1 - Rotations per minute: 4800 RPM - Speed modes: 4 - Multi speed: Yes - Rechargeable: Yes - Recharged battery lifetime: 120 min - Splashproof: Yes - Materials: ABS+ PC + Silicone