Mr Tuffy's

- Made of durable light weight polyurethane - Provides a protective layer between road hazards and the inner tube - Weighs less than liquid fills and thorn-resistant tubes - Can be reused - Easy, mess free installation

- Just like the Original version except specially designed for FatBike applications - 2-ply rubber shield fits between tire and tube to prevent flats - Fits both 26-inch and 29-inch tires