Stans No Tubes Tyre SealantWith just two ounces of Stan’s Tyre Sealant in your standard tubeless tyre set-up, any hole up to 1/4" in size can be repaired. The sealant stays liquid for up to seven months in a mountain bike tyre. Plus, its special anti-freeze agents are used to let it function in environments as cold as -30° F.Features: Riding in arid climates or storing the bike in a hot area will require more frequent monitoring Pre-measured and ready to apply to one bicycle tyre Lasts for 2 to 7 months whilst in a mountain bike tyre Can be used in environments as cold as -30° FUse: Commuter/Touring/Cyclocross/Road/Mountain Bike Buy Stan’s No Tubes Wheels & Tyres from Chain Reaction Cycles, the World’s Largest Online Bike Store.