Steel Deep Groove Ball Bearing for Skateboards Scooter RollersOOTDTYComs: 100% Brand New and High Quality Made of steel, strong and durable. Suitable for skateboard, mini cruiser, longboard, scooter, trike, rollerblades, roller skates, fidget spinner and more. High quality, high speed, low friction, will give you a smoother feeling. Easy to disassemble and clean, and anti-dirt, stone, dust, pre-lubricated with racing grease to extend bearing life and maintain precision. Optimize the load and reduce the frictional heat. Specification: Material: Steel Size: Approx.22x7mm/0.86x0.27in Diameter: Approx.8mm/0.31in Color: Black, Red (Optional)Package Included: 8x Bearing Sports Skateboard Note: 1. Please allow 1-2cm errors due to manual measurement, please make sure you do not mind before ordering.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.