Powerful penis pump with integrated magnifying glass and measuring scale. 4 different levels can be easily and conveniently controlled via 2 buttons. High-quality transparent cylinder, material: ABS plastic, length: approx. 21.5 cm, Ø approx. 6.0 cm Black, soft and stretchable sleeve, material: TPE, Ø approx. 1.5 cm, stretchable up to approx. 10.0 cm Easy to clean. Rechargeable with USB cable (adapter not included). Charging time: approx. 120 minutes. 1 battery charge lasts for approx. 3 hours.