Features: 6/8 inch strong tire, heavy duty, wear-resistant, anti-skid, gentle High high quality steel bearings are used, which are sturdy and durable It is relevant to maximum electric wheelchairs, carts, front wheels and walking aids Easy to put in and take away You can roll smoothly on maximum surfaces Specifications: Material: Plastic Color: Grey/Black Wheel Size: 15 (6inch)/20 (8inch) Bearing Outer Diameter: 2/0 Bearing Inner Diameter: 0/0 Package Includes: 1x Wheelchair Front wheel Note: Please enable 1-2cm errors because of manual measurement, just be sure you don't mind earlier than you order Due to the variation between assorted monitors, the image won't replicate the actual coloration of the thing