Product Name: Wheelchair Front WheelMaterial: Pvc Abs Steel Ball BearingColor: Black, Gray.Dimensions: 6 Inches 15 Cm, 7 Inches 17 Cm, 8 Inches 20 Cm, 7.5 Inches 19 cm (Thickness).Beabore Diameter: About 0.8 cm (5 16 Inch)Application Scenarios: Used for Wheel Hub Replacement of Wheelchairs, Trolleys, Walkers, Baby Carriages, and Carts.Package Includes: Wheelchair Front Wheel X 2 Mounting Screws X 2Place the Wheel in the Middle of the Front Fork.2. Pass the Screw through the Hole.the Nut Can Be Flexibly Turned Until the Wheel is Turned. This Product Only Includes the Front Wheel and Screws of the Wheelchair, and Does Not Include Other Products on the Picture. Dimensions Are All Measured Manually, with Slight Errors, Please Refer to the Actual Product. Due to the Shooting Angle, Light, Display, Etc., It is Inevitable That There Will Be Slight Chromatic Aberrations and Errors.? If You Are Not Satisfied with the Product, Please Contact Us, We Will Serve You Wholeheartedly, If You Are Satisfied with Our Product, Please Remember to Give Us a 5-Star Praise As a Reward.Application Scenarios: Used for Wheel Hub Replacement of Wheelchairs, Trolleys, Walkers, Baby Carriages, and Carts. Beabore Diameter: About 0.8 cm (5 16 Inch). Color: Black, Gray. Dimensions: 6 Inches 15 Cm, 7 Inches 17 Cm, 8 Inches 20 Cm, 7.5 Inches 19 cm (Thickness). Material: Pvc Abs Steel Ball Bearing.