Are you looking for a professional and practical roller skate bearing? , ! Our roller skate bearing must meet your needs. This industrial bearing is made of nylon and steel material, and sturdy for use. Fine workmanship practicality and durability. Features -Color:Assorted Color -Material:Nylon, steel -Size:2.90X2.90X0.80cm/1.14X1.14X0.31in Bearing: 91kg -Compatible with a wide range of equipment and applications, this replacement nylon ball bearing roller is versatile and can be used in various settings. -Resistant against wear and rust for long-term use in various environments. -Effortless rolling and reduced friction are made possible by the solid ball bearings used in this roller, providing a smooth and easy user experience. -Enhanced stability is provided by the double convex design of this roller, ensuring a secure and stable fit for a better user experience. -Stylish and eye-catching appearance for increased product recognition. Easy to install and replace for easy maintenance. Package list: 2 x bearings