Usage Tips:Package includes: there are 20 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 cmQuality material: made of strong ABS material and glue, the wheels caster is stable and sturdy, reliable and durable to use for a long time, and it can be firmly pasted on storage boxes surface, will not leave residual glueNice 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, surface of wheel and caster body, with no shrill noiseWidely applicable: these cute caster not only be applied to shoes box, trash bin, small container for and easier moving, but also a suitable DIY accessories, nice 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 and even surface, such as plastic, stainless steel, painted metal surfaces, fancy plywood, plywood, cardboardColour:WhiteMaterial:plasticSize:47 x 22 x 17MMPackage Contents:20 x Caster WheelsOnly the above package content, other products are not included.Note: Light 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.