Bearing spacers are designed to create a nice smooth axel spin and will help prevent your bearings from collapsing, and the bearing will be motionless without the bushing. These spacers will fit all standard skate wheels.Description: - Material: Alloy - Color: Silver - Quantity: 40 pieces - Inner diameter: Approx 8mm / 0.3 inch - Made of high quality alloy, durable and useful - The skate bushing will get abrasion after long time use, in order to keep the wheel bearing smoothly, it’s necessary to change the bearing bushing regularly - These are basic replacement bushings for most skatesPackage Includes:40 x Skate bearing spacers