Throttle assist wrist regulator for 7/8inchinch (22mm) handlebar (note: not fit for 1 inch handlebar); please check your motorcycle before ordering - it is motorcycle handle control, not cruise throttle lock. Material of throttle assist: made of abs plastic, directly on the motorcycle handle, the throttle assist will make it easier to rotate the throttle grip. Full motorcycle throttle control with a relaxed hand, fits comfortably, reduces pressure on your fingers, wrist and arm, reducing fatigue issues , tendinitis, carpal tunnel for easier throttle operation. Ergonomic wave design, full throttle control with a relaxed hand. throttle assist will make it easier to rotate the throttle grip. easy installation .Rubber inside increases the friction between the grip and the bracket, making it easier to grip the grip.operate the throttle without having to squeeze the grip, a must-have gadget for all cyclists Material: Plastic Dimensions: approximately 6cm x 5cm x 3cm (LxWxH) Colour: Black Notice: Due to manual measurement, the size error is about 1-5mm. Shipping Quantity: 2 pieces"