SDscooters BOB SPORT UTILITY 16 inch Inner Tube - For BOB Sport Utility and Duallie Stroller front or rear tires includes Safety Cap Original replacement part guaranteed to fit. Includes a child resistant chrome safety valve cap. Keeps little fingers out and air in. 10x better air retention than plastic caps (a 1.49 value). A Premium Quality inner tube means fewer interupted excursions and more quality time Low lead content type tube to keep your child healthy Fits both front and rear tires on the BOB Sport Utility jogging stroller