RCAI Knee Brace Pediatric Child D-Ring/Hook and Loop StrapModel 550-HKB-CChild Measurement 9-10″ (22.9 – 25.4 cm)Listed as USED but it is NEW my child wore it for a couple of hours and then refused to wear it The new Hinged Knee Brace by RCAI provides support, compression and warmth for post operative knee rehabilitation, medial/lateral ligament instability, anterior posterior cruciate instability, and meniscal injury. Made of a breathable aireprene material, the washable Hinged Knee Brace provides therapeutic warmth and comfort . Lightweight, bilateral metal hinges provide excellent medial and lateral knee support, and allow for full ROM. Circumferential straps above and below the patella maintain proper positioning of the brace on the leg. A diamond shaped cut out at the back of the knee reduces possible skin impingement. Removable horseshoe shaped felt buttress to support the medial or lateral condyle.