Our well-structured wheels provide silent and stable rolling. No scratch for the any surface of ground like hardwood, laminate, porcelain or ceramic tile, vinyl or linoleum, natural stone & more. Ready to use without installation - No screw or nail is needed. Widely apply to storage boxes, sorting boxes, trash bins, racks, mini cabinets, sideboards, bedside tables etc. Suitable for any textured surfaces such as carpets, PVC pads etc.Size:2X3cm（0.78X1.18inch ),18.5X8.5cm（7.28X3.34inch）Please allow some differences due to manual measurement.Thank you for your kindly understanding.4pc Bottom rollerDue to the light and screen difference, the item's color may be slightly different from the pictures.Moving stuffs has become labor-saving task from now on no matter at home, in garages, workplaces or dormitory! Just place our Compact Adhesive Furniture Wheels under your heavy items, then pull and push to move or re-position heavy furniture, belongings without effort. The powerful bearing wheels roll smoothly and speedily, saving your time from carrying out the boxes!Material: plasticColor: black,white