Size: 10x2. Part Number: 10X2.00/2.15. Included Components: 10x2 Inner Tube. With an expandable width that can accommodate 1.75“/1.90”/1.95“/2”/2.125“ tires (Depends on the amount of air filling); these inner tubes can withstand whether it be a toddler's rough riding or a commuter's scooter ride to work.