YunSCM 2-PCS 28/29 inch 64/76-622 Heavy Duty Bike Inner Tubes 28/29x2.50/2.60/2.80/3.0 AV32mm Schrader Valve 28/29" Tubes Compatible with 28/29x2.50 28/29x2.60 28/29x2.80 28/29x3.0 Bike Tyre Tubes