Simple Medical Equipment Folding Manual Steel Rehabilitation Therapy Supplies Wheelchair for Sale 1. The frame is welded from high-strength A3 steel and spray-coated for enhanced rust resistance, safety, and durability. 2. Backrest: The angle is designed to perfectly match the physiologic curvature of the human waist, providing optimal support. 4. Armrests: The fixed armrests are padded with high-quality PVC for age-resistant performance. 5. The brake mechanism utilizes a toggle-type brake mechanism, which lowers the seat surface after application for convenient, quick, and safe use. It also includes a maintenance brake. 6. Seat/Back Cushions: Made of 400D Oxford fabric, the cushions are waterproof, easy to clean, soft, and smooth, featuring a built-in 600D canvas interlayer for high tensile strength. 7. The footrests are locked with an eccentric mechanism for height adjustment, accommodating different users. They also come with a calf strap. 8. Front Wheels: 8-inch (20cm) PVC swivel tires with high-strength plastic hubs. Rear wheels: 24-inch (60 cm) solid rubber rear wheels with excellent shock absorption, equipped with a handwheel mechanism (for direct hand-powered wheelchair operation). 9. Foldable design for easy portability and space-saving travel.