General description The 8-inch diameter professional suction cup is designed for high performance and durability, quickly attaching to smooth, flat, non-porous surfaces. It is ideal for lifting and moving a variety of materials including glass, tiles, refrigerators, furniture, plastics, metals, slates, and household appliances. However, it is not suitable for uneven surfaces. Technical specifications Diameter: 8 inches Load capacity: up to 200 kg Material: high-quality rubber and high-strength ABS plastic Operating temperature range: -20°C to 60°C Vacuum maintenance duration: up to 4 hours Installation Place the suction cup on a smooth, non-porous surface. Pump the vacuum into the suction cup until the red warning line disappears. Usage Can lift curved objects such as bathtubs and washing machines. Can also be used on flat surfaces. A red indicator line alerts the user when the pad is losing vacuum. When the red line appears, use your thumb to operate the plunger without moving the