This product is a sticky on wheel, made of solid materials, safe and . It can last for a long time without being easily . The product is an excellent sticky on wheel that can bring you more convenience, allowing you to have comfortable experience. Features -Color:Black -Material:ABS, steel -Size:4.70X4.70X1.10cm/1.85X1.85X0.43in -Size:4.70X4.70X0.10cm/1.85X1.85X0.04in Bearing: 100kg -The reinforced roller frame is designed to provide enhanced durability for performance. -This casters wheel is resistant to wear and tear, ensuring that it can withstand heavy use without easily getting . -The convenient and time-saving solution of this product allows for easy movement of heavy objects without the need for drilling or installation. -The mini swivel wheels with four steel balls prevent shaking and scratching of the floor during movement. -Recommended to wait for hours after installation to achieve solid adhesion. Package list: 4 x Caster Wheels 4 x Stickers