Feature●Pram inner tube made of tough butyl rubber●45 degree bent valve for easy connection of pump●DG Inner Tube 90 Degree Bent Valve - Boxed,10 x 1.75 / 2-InchDescription Note: PLEASE TAKE CARE WHEN FITTING INNER TUBES. DO NOT USE SHARP IMLEMENTS. ALWAYS USE A TYRE LEVER TO PREVENT PUNCTURING WHILST FITTING.