Practical Function: Simply attach the stainless steel universal wheel to the bottom of the box to easily move heavy containers. The silent wheels provide stable, quiet movement and will not scratch the floor. They prevent shaking during use and help distribute weight and pressure effectively. Allow 24 hours after application before use. Note: Lighting may cause slight color differences between the product and the image. 360 Degree Rotation: The mini adhesive pulley allows smooth movement in any direction without restrictions. Operates completely silently, making it ideal for use with makeup organizers, kitchen storage, tabletops, bedroom furniture, bathroom cabinets, living room shelves, and flower stands. Quality Material: Storage box casters are constructed from durable ABS material with small steel ball bearings. Designed to be sturdy, wear-resistant, and long-lasting. Enables easy movement of heavy items under load. Note: Use on wooden surfaces may leave marks over time. Easy to Install: Peel off the backing film and firmly press the caster onto a clean, smooth surface. For best results, wait 24 hours before use. The smooth-rolling pulley makes moving heavy objects effortless. Wide Application: These compact casters can be used on shoe boxes, trash bins, and small storage containers to improve mobility. Also serve as practical DIY accessories for children's toys, craft projects, and other creative uses. Maximum load capacity: 8 kg.