90 durometer polyurethane offers superior abrasion resistance For use with all standard co2 and HPA/Air/Nitro tanks used in paintball Also available in 1,000 Pack for a better value for fields/stores https://www.amazon.com/dp/B00GUNWUKO International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 0.1 ounces, Manufacturer: CaptainOring.com