• Transparent tube made of ABS material, odorless, safe, and durable. • Eco-friendly simple handle. • Multifunctional: economical and effective for solving installation failures, satisfying both you and your partner. • Easy to use: simple operation, traction pressure control, and release valve. • Advanced designs to generate suction effectively, including the additional pleasure of the product. • The cylinder is transparent, allowing easy observation of the expansion size. • When you feel the air slowly discharging, you can clearly see it getting bigger and stronger in a short period of time thanks to the precise measurement tool in the transparent chamber. • Your gift will be wrapped secretly, no one knows what the gift is, only you know.