Used on DC 12V electrical system??fit for 22mm/ 7/8″ handlebar. It can use for all motorcycles, bicycles, motorbikes, ATVs, scooters, and snowmobiles. Made of quality material, waterproof. anti corrosion, suitable for a rainy day. Function: The handlebar switch possesses the function of turn signal control, horn switch, headlight control. Easy to install, just only use few minutes to put on the switch. Package Included: 1 Pair x Motorcycle Handlebar Switch Feature: Function: The handlebar switch possesses the function of turn signal control, horn switch, headlight control. Use for all motorcycles, bicycles, motorbikes, ATVs, scooters, and snowmobiles. Easy to install, just only use few minutes to put on the switch. Specification: Material: Aluminum Alloy Voltage: DC 12V Color: Black Pin Numbers: 8 (Each of Handlebar Switch) Fit Motorcycle Handlebar Size: 22mm/ 7/8″ Dimension: 73x55x62mm/2.87″x2.17″x2.44″ (L*W*H) Wire Length: 540mm/21.26″ Thread Inner Dia.: 9mm/0.35″ Pack