4 Stainless Steel Balls /Set Universal Wheel 360 Rotation Self Adhesive Pulley Base for Furniture Storage Box Bedside Table Move Accessories Furniture Feature: 1. Durable: The rotating wheel is made of ABS material and small steel balls. Four viscous rotating wheels can carry 100 pounds (approximately 45.4 kilograms), making it strong, smooth, and easy to roll. 2. Unique Design: The rolling caster pulley is equipped with three rolling balls, which can rotate freely in 360 degrees. When used, it is smooth and quiet without scratching the ground. 3. Easily Move: You can move heavy objects and other furniture with this universal wheel in your home. It can move heavy objects easily without any pressure. 4. Easy Installation: You only need to install small household appliance casters on the bottom of the object without drilling holes to move. It is recommended to wait 24 hours for it to become more secure. The small steel ball may not rotate during transportation. Please manually roll it to make it rotate smoothly. 5. Widely Used: Mini caster wheels are suitable for small appliances, storage bins, trash cans, trash cans, furniture, or other items that need to be moved. Specification: Product size: about 37 * 37mm/1.45 * 1.45inch Product packaging: PE bag Product material: ABS, stainless steel Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement.