Reliable MaterialsThis cute little swivel caster is made of thick ABS, strong and durable, strong load-bearing capacity, sturdy pulley, wear-resistant and smooth, rounded edges, no burrs and does not hurt your hands. They can be used for a long time and can easily move heavy objects without stress. Easy to Use and EffortlessOur self-adhesive casters are equipped with adhesive stickers, no drilling or tools are required, just stick the universal wheel to the bottom of the box and place the pulley at the bottom of the box for 24 hours before use. Adhesive casters can be applied to the bottom of storage boxes, trash cans, etc., which is convenient and labor-saving to move. 360 Free RotationThe ball roller can rotate 360, which is more convenient to move than the one-way type. It can easily move your furniture from all angles. It can rotate freely and roll infinitely. It can easily help you pull storage boxes and small furniture, which is very convenient and labor-saving. Practical and beautifulThe storage box pulley is small and light, with a size of 4.5 x 2.8 x 1.4 cm. It is small and practical, will not affect the overall appearance of the furniture, and will not leave scratches/marks on the floor. Wide range of usesThese cute casters are suitable for shoe boxes, trash cans, various storage cartons, trash cans, vases, small furniture, etc. They are also perfect DIY accessories, suitable for children's toys, handicrafts, small projects, etc. Specification: Material: ABS Color: milky Size: 45*28mm Package including: 12 X small casters