Wheelchair Accessories: Front fork and front fork with replacement wheel kit. Available in 6 inch, 7 inch, and 8 inch sizes. Material: Thickened ABS PP, quick knockdown design for easy use. Features: Heavy-duty, wear-resistant, smooth, and quiet operation. Equipped with 1.2 cm ball bearings in all joints for maximum load capacity and extended durability. Easy Installation: Comes with screws for simple installation and removal. Compatible with most manual wheelchairs, front wheels, walking aids, rollators, and walkers. Specifications: Material: Thickened ABS PP Bearing Hole Diameter: approx. 1.2 cm / 0.47 inch Size Chart: 6 inch Fork: 13.5 x 3.5 cm / 5.31 x 1.38 inch, fits 14-15 cm diameter wheels Package Includes: 1 Piece Wheelchair Wheels Front Fork Notes: 1. Please allow slight measurement deviations due to manual measurement. 2. Due to differences in monitor displays, the actual color may vary from the image.