The self adhesive caster wheel is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This caster wheel is a very practical and reliable for your needs. Features -Color:Black -Material:ABS, stainless steel -Size:4.70X4.70X1.50cm/1.85X1.85X0.59in Hole distance: 4cm - The silent casters are stable and quiet, can slide easily on a flat surface without scratching the ground, and are not easy to shake when pushed. - Just paste wheels on the bottom of the box, and the heavy box can be easily moved. - The stainless steel metal ball can rotate 360 degree freely, whether it is front, rear, left or right, it can push heavy boxes with a light push. - Fit for small appliances are designed with two installation methods, one is self-adhesive, the other is drilling, you can choose to stick or drill according to your needs. - Simple in design, but very practical in use, which brings great convenience to you. Package list: 4 x casters wheels