Description: [Product Name]Joystick controller knob or controller dust cover for power wheelchairs [Material]Made of silicone material, comfortable to touch [Good Protection]Protects the wheelchair controller and scratches [Easy to Use]Lightweight and easy to install [Application]Joystick knob and dust cover can be widely used in most joystick controllers, which can greatly facilitate your life Specification: Material: Silicone Size Chart: Approx. 3cmx4.2cm or 1.18inchx1.65inch Package Includes: 1 Joystick Controller Knob 1 Controller Dust Cover Note: Please allow slightly errors due to manual measurement and different monitors. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.