The high performance 8 inch diameter suction cup is durable and quickly adheres to smooth, flat, non-porous surfaces. Ideal for lifting and moving glass, tiles, refrigerators, furniture, plastic, metal, slate and appliances. Note that it is not suitable for adsorption on uneven surface tiles. The suction cups are made of high quality high strength rubber and ABS plastic. The ABS plastic handle of the suction cup is ergonomically shaped, sturdy and comfortable, and has excellent anti-slip effect. The suction cups have power Extremely strong suction, can work in the temperature of -20C to 60C and maintain vacuum for 4 hours, the maximum vertical suction force of a single suction cup is 180 kg The suction cups are specially developed for curved surfaces. The suction cups provide enough space. Can lift curved objects such as bathtubs, washing machines, etc. Can also be used on flat surfaces. All you need 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 seat cushion is losing vacuum. When the red line appears, just use your thumb to suck the plunger, no need to move the suction cup away from the surface, so that the suction cup will firmly hold the surface for a long time. Quantity: one piece Note: Other items are not included here, the color is subject to the first picture, other pictures only show the effect. Due to the differences between different monitors, the pictures may not reflect the actual color of the item. due to manual measurement. Please allow deviations. THANKS! become very rich