Specialized designed the 2Biliss Ready Tire Sealant with leading laboratories and tested it with Factory Athletes to ensure premium quality. It's an ecological formula that works on road or mountain tires. It seals punctures up to 6mm in a vast range of extreme temperatures both freezing and hot. Natural microholes in the sidewalls seal well, and the sealant even works with latex inner tubes and inside tubulars. There's no potential for allergic reactions, and there's no risk for creating damage to bike parts.