Detailed Product Description Features:1) Materials can be altered to meet customers' requirements2) Specifications (OD): Φ6, 8, 10, 11, 12.7, 13, 14, 16, 17, 18, 19, 20, 21, 21.2, 22, 25, 25.4, 27, 28, 28.6, 29, 29.5, 31.8, 32, 34, 35, 38, 38.1, 41, 42, 45, 48, 48.6, 51, 54, 60mm3) Thickness: 0.8-3.5mm4) Widely used in sports and medical equipment, and in vehicles, at home, or on ships