Set of two bearings Shielded for longer life Fits many popular Razor scooters Affordable This is a set of two 6001ZZ shielded wheel bearings for gas and electric scooters The 6001ZZ wheel bearing is commonly used for 250 watt and 350 watt electric scooters, gas skateboards, and many others Description This is a set of two 6001ZZ shielded wheel bearings for gas and electric scooters. The 6001ZZ wheel bearing is commonly used for 250 watt and 350 watt electric scooters, gas skateboards, and many others. The number 6001ZZ is etched on the side of each bearing. Please note that a set of two bearings is required for each wheel. Specifications Diameter (Outer): 28 mm Diameter (Inner): 12 mm Width: 8 mm