About this item size4.5*2.8*1.4cm Durable MaterialThese self adhesive castor wheels are made of ABS + 304 stainless steel ball, which are compressive, wear-resistant, durable, and strong load-bearing capacity. Shock AbsorptionThe self adhesive castor wheels slide smoothly, can roll smoothly and quietly without making harsh noises, and will not leave marks on the ground or damage the ground. 360 Degree Free RotationThe self adhesive castor wheels can slide to any angle without limit, completely silent during using, help you easily pull storage boxes and small furniture, which is very convenient and labor-saving. Non-destructive Installation You only need to stick the self adhesive castor wheels on the bottom of the box for 24 hours to use. Suitable for moving and cleaning, smooth pulleys will make you no longer worry about heavy objects! Scope of ApplicationOur self adhesive castor wheels can be used for many purposes, such as storage boxes, trash cans, ordinary cartons and other items. It is also a perfect DIY accessory, suitable for children's toys, crafts, small projects, etc. package16pcs self adhesive castor wheels .