Specifications: NameElectric Wheelchairs Joystick Knob Gaiter ColourBlack MaterialSilicon rubber Size( Joystick Knob)approx. 40 x 42mm/1.57 x 1.65 (height x outer diameter Size( Joystick Gaiter) approx. 35 x 28mm/1.38 x 1.1 (height x inner diameter) Dustproof New, unused, unopened, undamaged item Condition:100% new and high quality Manufacture:China,Chinese Factory Homegrown products comptiable with Sale Friendly Tips: Please allow minor error of measurement,due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks comptiable with your understanding Package Included 1 X Joystick Knob 1 X Joystick Gaiter