Valve length: 48mm. Size: 28" x 1.75" (40/47-622), 28" x 1 1/2" (37/44-635), 28" x 1 5/8" x 1 1/2" (44-635), 28" x 1 3/8" x 1 1/2" (37-635). Valve type: Dunlop/Woods. Includes valve cap. We are proud to have helped the nation stay fit and healthy during these difficult months!