Sizes: dia1m*2m, dia1.2m*2m, dia2m*2.5m, dia2.5m*3m, dia2.5m*5.5m dia 3.3m*5m, max dia3.5m*8m, etc. Feature: 1. Anti-explosion. 2. Wholely winding. 3. Anti-aging. 4. Thick material, 18layers, 19layers, 20layers, 21layers, 22layers, etc. Description: 1. Inner: rubber tube. 2. Middium layer: multi-layer of rubber-dipped tyre fabric. 3. Material: natual rubber, anti-aging. Multi layer of rubber-dipped tyre fabric. 4. Outer: tyre-chain net. 5. Tyre: air tyre, car tyre. 6. Chain: hot galvanized. 7. Flange: hot galvanized or stainless steel. 8. Shackle: hot galvanized. 9. Valve: copper. 10. Working pressure: 0.05mpa, 0.5bar. 11. Testing pressure: 0.15mpa, 1.5bar. Warranty: 12 months. Life-span:8 years.