Airless Inserts including 20 x 1 3/8 Poly Foam Insert

20 x 1 3/8 Poly Foam Insert - Airless Inserts

20 x 1 3/8 Poly Foam Insert Replaces standard 20 x 1 3/8 inner tubes. Makes the tire "Flat Free". Airless insert fits most 24in wheels (37-451). Reusable. Installs with minimal tools. Tire required. Foam Insert Only. Sold individually