uxcell Ball Head Tyre Air Chuck w 11 1/4" Flexible Hose Ball Head Tire Air Chuck with 11 1/4 inch Flexible Hose Air Chuck is mainly used for pumping air into tires of bike, Car and so on . Tire Chuck makes filling your tires easier. Length: 11 1/4" The other end diameter: 1/2"(Outside) x 1/3"(Inner). The round hole inner diameter: 1/3". For inflating bikes, cars and trucks. With adapters, inflate rafts, balls and most inflatables