Good quality: This suction cup is made of environmentally friendly materials, the handle is made of aluminum alloy, and the bottom of the suction cup is made of natural rubber. These materials are non-chemical and non-toxic. Easy to use: First, you need to make sure the handle is flat and without holes, then adjust the handle to a separate state and put the black suction cup on the handle. 'article. Finally, press the suction cup vertically and lift the object with the suction cup handle. Easy to use: The plunger uses a red wire light to let you know you have enough vacuum to lift your load. If a red line appears after pumping, the built-in check valve allows you to pump again without loss of vacuum. Simply squeeze the trigger on the other end of the plunger handle to release. These cups are secured with a relief valve to prevent accidental loss of vacuum. Robust and durable: the lifting load range of the tool is approximately 75 . It can work at temperature from -20C to 60C and maintain vacuum for 6 hours. It features a durable, odorless and strong rubber suction cup with an ergonomic handle. Quality Service: We will provide a high quality product to meet your needs. And if the suction cup is damaged or other problems, please contact us and we will get back to you in time.