Key benefits and features Safety and durability: explosionproof and puncture resistant tire construction helps avoid frequent reinflation, providing a reliable, low maintenance option. Strong grip and anti slip performance support stable handling on a variety of road surfaces. Comfort and wear resistance: thick PVC tread is flexible, reduces rolling noise, and offers wear resistance. Suitable for use in diverse environments. Solid wheel design allows replacement of damaged wheelchair wheels. Broad compatibility: designed for most electric wheelchairs equipped with 200 x 50 caster tires and installed bearings. Clear specifications: tire size 8 x 2 inches (200 x 50). Aperture 8 mm / 1/4 inch. Interaxle width 58 mm / 2 1/4 inches. Tread width 50 mm / 2 inches. Use scenarios Wheelchair maintenance and replacement: ideal as a straightforward replacement for worn caster wheels on electric wheelchairs, helping restore smooth handling and extend wheel life. Outdoor and mixed surfaces: performs well on sidewalks, pavement, and uneven outdoor surfaces thanks to its sturdy construction and grip, reducing the risk of punctures. Indoor quiet operation: suitable for indoor use in homes, clinics, and other quiet environments where reduced rolling noise is beneficial. Note: This product is suitable for most electric wheelchairs that use 200 x 50 caster tires and have installed bearings.