Description: Durable and lightweight. It provides a protective layer between the outer tire and the inner tube. Protects tubes against punctures from glass, thorns, nails, and other road and trail debris. Easy to install without causing tire or tube damage or loose spokes. Features: 26" x 1.95" Tire: Cityscape, Race Plus---20mm wide 20" x 4" Fat Tire: Mars---65mm wide 27.5''x1.95''Tire: Race Max---20mm wide 26''x4'' Fat Tire: Explore---65mm wide *Light shooting and different monitors may cause the color of the item in the picture to be slightly different from the actual item. For manual measurement, please allow a 1~3mm error.