【Quality Material】: Made of high quality aluminum alloy and natural rubber, non-slip, safe and durable. With the soft rubber suction cup, negative pressure can be generated to better handle heavy and smooth objects. 【Easy to Use】: To clean the surface of the suction cup before use, simply press the rubber suction cup on the surface of the object, then push the lever down. Pull the lever again to loosen it, and the object can be sucked firmly. 【Multifunctional Carrying Tool】: Suitable for all objects that have smooth surface properties. Transportation Various materials, plastic material, glass material, marble material, metal material and wooden structure material, for example transportation: glass window, cabinet, desk, toolbox, marble floor, desk, table, washing machine, air conditioner, etc. Note】: 1. It cannot be used on curved surfaces, only smooth surfaces such as glass and marble. 2. This glass suction cup is a portable tool and should not be used for construction machinery or