Professional of Stinaless Steel Crutches,Aluminum alloy cruth manufacturers. Specialize in manufacturing Aluminum crutches in China. Item: Aluminum alloy cruth (common) 3-Hole manual adjusted heights TH935L(M): Height from 112cm-132cm TH935L(L): Height from 127cm-147cm 1. Superior quality light weight anodized aluminum tubing 2. Bolts coated with adhesive against wing-nuts spinning off 3. Non-slip rubber tips provide good traction 4. Built-in metal ring prevents excessive wear and ensures maximum durability 5. Reinforcement footpiece provides maximum strength 6. High foaming handle and rubber spports 7. Unbreakable silencing collar increases stress tolerance at all angles without cracking and reduces noise and vibrations 8. Packaged completely accessorized