2-Pack Heavy Duty 26-inch Bike Tube with Strong Airtightness and Puncture Res...

26X1 3/8 /1.75/1.95/2.125/2.4/2.5/3.0/3.5/4.0/4.5 with 32mm Schrader Valve for MTB, City Bikes. 【Enhanced Puncture Protection for Safe Riding】：The bike tube features built-in puncture-resistant technology, providing added protection against sharp objects like glass, nails, and debris.