The 8-inch diameter high-performance suction cup is durable and quickly attaches to smooth, flat, non-porous surfaces. It is ideal for lifting and moving glass, tiles, refrigerators, furniture, plastics, metals, slates and household appliances. Please note that it is not suitable for adsorption on tiles with uneven surfaces. The suction cup is made of high-quality rubber and high-strength ABS plastic. The suction cup ABS plastic handle is ergonomically shaped, sturdy and comfortable, and has excellent anti-slip effect. The suction cup has extremely strong suction power and can work at temperatures from -20°C to 60°C and maintain a vacuum for 4 hours. The suction cups are specially designed for curved surfaces. The suction cup provides enough space. Can lift curved objects such as bathtubs and washing machines. Can also be used on flat surfaces. Simply place the suction cup on a smooth, non-porous surface or flat surface. Then pump the vacuum into the suction cup until the red warning