【Safe and Reliable Materials】- The clear penis pump tube is made of strong and durable PET, the soft pussy is TPE, and the 3 sleeves are made of silicone, all of which are healthy materials and more secure to use. 【3 Different Size Suction Sleeves】- To match your use and exercise, we have included 3 different sizes of silicone sleeves, you can start with the small size and gradually you will probably use the largest size. 【Ergonomic Handle and Release Valve】- The handle is designed to fit the width of your fingers, you can easily hook the handle and adjust the air pressure. The release valve is simple and efficient, one-button operation, for your comfort and safety. 【Clear Graduations & Extra Lube】- The enlargement pump tube is clear and has precise graduations on the surface, so you can easily see the results and changes of your workout. The accompanying lube will make your using easier. 【Removable & Easy to Clean】- The cleaning process is simple and convenient, you only need to remove the vacuum pump tube and clean it. Please use mild detergent to clean. 【Discreetly Packed to Protect Your Privacy】 - We use opaque carton packaging, and no text on the box, to protect your privacy security.