Features: Made of high quality ABS material, high strength and durable in use. Vacuum absorption principle, great bearing capacity up to 150lb. Simple operation, easy press to secure, suitable for smooth surface. Solid iron hook, not easy to corrode and anti-aging, long service life. Large area sucker, free of pouching, does not hurt your wall. Portable in size and weight, save space, convenient to use. Specifications: Material: ABS + PVC + Iron Color: Black Quantity: 4 PCS Diameter: 130 mm / 5.1 in Unit Weight: 220 g / 7.8 oz Package List: 4 * Suction Hook Note: 1.Please allow 1-3cm error due to manual measurement. 2.Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.