Gains Chamber Automatic Vacuum Penis Pump

The Gains Chamber is an automatic vacuum penis pump, constructed from ABS, silicone, and acrylic. Its automatic suction system boosts blood flow, supporting stronger, harder erections without manual effort, and a transparent chamber includes precise measurement markings to visually track progress. This pump features a quick-release safety valve for instant pressure relief and comfortable control, alongside single-handed operation for ease of use. It is USB rechargeable. The total length is 22cm, with a 17.5cm chamber length and a 6cm chamber inner diameter. The pump sleeve has a 2cm inner diameter. It is not waterproof. For care, use only water-based lubricants and wash with warm water and mild soap or antibacterial toy cleaner; its detachable parts allow for easy cleaning and storage.