Practical Function: Simply attach the stainless steel universal wheels to the bottom of the box, and heavy items can be moved effortlessly. The silent wheels are stable and quiet, ensuring no scratches on the floor, and they remain steady during movement, better distributing weight and load. Please allow 24 hours for adhesive to set before use. 360 Degree Rotation: The mini adhesive pulleys can glide to any angle without limitations and operate silently, making them ideal for makeup storage, kitchens, tabletops, bedrooms, bathrooms, living rooms, and flower shelf organization. Quality Material: The storage box casters are constructed from strong ABS material and small steel balls, offering durability and wear-resistance for long-term use. They can easily move heavy objects without strain. Note: Sliding on wooden surfaces may leave marks. Easy to Install: Just peel the protective film off the back, press firmly onto a smooth surface, and it's recommended to wait for 24 hours before use, ensuring that heavy items are easy to handle with the smooth pulleys. Wide Application: These charming casters are perfect not only for shoe boxes, trash bins, and small containers for easier transport, but they also serve as delightful DIY accessories, suitable for children's toys, art projects, and more, with a maximum load capacity of 8 kg.