Package includes: there are 40 pieces adhesive caster wheels in the package, enough sufficient for your daily use and replacement, mini size is 1.88 x 0.88 x 0.63 inch/ 4.8 x 2.2 x 1.6 cm Quality material: made of strong ABS material and glue, the wheels caster is stable and sturdy, reliable and to use for a long time, and it can be firmly pasted on storage boxes , not leave residual glue Nice performance: the wheels boxes caster has no worries about unbalanced placement, and the load capacity is about 8 kg/ 17.5 lb when use 4 casters, smooth of wheel and caster body, with no shrill noise Widely applicable: these cute caster not only be applied to shoes box, trash bin, small container for smooth and easier moving, but also a suitable DIY accessories, nice for kids toy, art craft works, toys car, cloth bin, storage container, bedside tables, trash cans, etc. Easy to install: there is no drill, no tools required, please tear off the protective film for application; You can paste the adhesive caster on smooth and even , such as plastic, stainless steel, painted metal surfaces, fancy plywood, printed plywood, cardboard Colour:White Material:plastic Size:47 x 22 x 17MM Package Contents: 40 x Caster Wheels Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.