Airlock Sealant is an in-tube solution designed for flat prevention that surpasses competitors in flat protection performance. This 8oz container is ideal for treating two standard wheels. The formula is non-toxic and non-separating, with no limited shelf life like competing products. It coats the tube for permanent protection and works continuously to prevent slow leaks. The sealant is completely homogenous so it doesn't puddle, and it works with any bicycle tube that has a removable valve core. Each 8oz bottle includes a valve puller and hose stored under the cap for convenient application.