Feature●Also compatible with BOB strollers found on the pics, ect.●Tube expands to fit baby stroller.●Valve Type: Straight Valve.●Fits on all 3 wheels●Long lasting pneumatic tube.Description Compatibility: BOB Sport Utility Stroller (all 3 wheels), BOB Ironman Stroller (all 3 wheels), BOB Double Stroller, BOB Revolution SE Stroller (rear wheel), BOB Strides Stroller.