Pack Large Suction Cups: The actual size of the suction cup is 53mm. Easy to Hang: The thread and included knurled nut make it easy to attach the material to be joined. Excellent for hanging wreaths and larger decorations on windows, mirrors, or any other clean, smooth, non-porous surface. Once applied, it is not affected by heat or cold. 【Premium Quality】The bathroom utility storage hooks are made of high-strength transparent PVC material, which is beautiful, sturdy, and waterproof. Convenient for repeated use, just wash and then dry gently. Non-Marking Removal: The suction cups will not yellow, deteriorate, or lose their grip over time. Use a flat blade to release the vacuum cleaner without damage or marks, and it is ready to be used again. Instructions: Make sure the surface is clean. Use only on smooth surfaces such as glass, metal, ceramic tiles, plastic, Formica, etc. Press the suction cup onto the surface to release the air from underneath the suction cup. After testing objects to ensure the safety of suction. Delivered quantity: 4 pieces Product color: transparent Product model: 53MM-M4-8MM single weight: about 7 grams Adsorption force: about 3000 grams Uses: Generally used to support glass, install footrest brackets, etc., can be side suction.Good quality product