Q-Tubes Value Series Schrader tubes: Price point tubes with 1.0mm wall thickness and simplified size specifications - Removable Schrader valve core - Individually packaged tubes in recycled cardboard - Labeled Size: 26 x 1.75-2.125 - Weight: 185 g - ISO Width (mm): 47 mm , 48 mm , 49 mm , 50 mm , 51 mm , 52 mm , 53 mm , 54 mm , 55 mm , 56 mm , 57 mm - Tube Compound: Butyl - ISO Diameter: 559 / 26" MTN - Valve: Long Schrader 48mm - Wall Thickness: 1 mm