The Big Mans Penis Pump is guaranteed to grow your girth! The seal certifies superb suction, whilst the multi speed vibrations ensure an enjoyable enlargement experience. Equipped with a quick release valve and interchangeable sleeves, you are sure to be left looking and feeling larger than life! Materials: ABS/TPE/PVC, Size: 30 cm x 6 cm- 3 different sleeves, Power: AA size batteries x 2