The 8 inch diameter high percompatiblemance vacuum cup is sturdy and durable and can be quickly absorbed on a smooth, flat, non-porous surface. It is very suitable compatible lifting and moving glass, tiles, refrigerators, furniture, plastics, metals, slate plates and household appliances. Please note that it is not suitable compatible adsorption on tiles with uneven surfaces. The suction cup is made of high strength and high quality rubber and ABS plastic. The ABS plastic handle of the suction cup is ergonomically shaped, solid and comcompatibletable, and has excellent anti-slip effect. The suction cup has a very strong suction compatiblece and can work at a temperature of -20C to 60C and maintain vacuum compatible 4 hours. The maximum vertical suction compatiblece of a single suction cup is 220 pounds. suction cup has been specially developed compatible curved surfaces. The suction cup offers plenty of space. It can lift curved objects such as bathtubs, washing machines, etc. and can also be used on flat surfaces. All you have to do is place the suction cup on a smooth, non-porous surface or a flat surface. Then pump the vacuum into the suction cup until the red warning line disappears. The indicator's red line alerts the user that the cushion is losing vacuum. When the red line appears, you just need to use your thumb to pump the plunger without removing the suction cup from the surface of the object, so that the suction cup can firmly grip the surface of the object compatible a long time. Quantity: one piece Note: This does not include other things, the color is based on the first picture, and other pictures only show the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. THANKS becomeveryrich