Features 1. 360 free rotation: The mini universal wheel is attached to the bottom of the object that needs to be moved, allowing you to easily and stably move the object in any direction with one hand, saving time and energy. 2. Practical function: The mini rotating wheel is stable and quiet when rolling, not easy to shake, and can better distribute weight and load. It has 18 wheels in a group, small in size, and can be used in any narrow space. 3. Easy to install: Simply use the self-adhesive tape included in the packaging to stick the casters to the bottom of the object. No drilling required, no damage to objects. It is recommended to wait for 24 hours after pasting, as the bonding will be more firm. 4. Quality and Safety: The small casters are made of ABS shells and stainless steel balls, ensuring their durability, soundlessness, smoothness, non toxicity, and odorlessness, making them suitable for long-term use. Please do not use them on wooden floors or other soft surfaces, as they may leave scratches! 5. Widely used: Castors are suitable for storage boxes, small furniture, computers, coffee machines, mixers, or other objects that need to be moved frequently, or are good DIY accessories for toys, artworks, and handicrafts. Specification Material: Plastic steel+stainless steel Color: White Size: 4.5 x 2.7 x 1 cm Weight: 100 g Package Include: 12x Self Adhesive Mini Caster Wheels