ITEM NAME:12V DC HeavyDuty Momentary Start Button Push Switch Car Boat Horn Engine20AMP â„–[ Specifications: Material: Diecast Aluminum & Plastic Length: 6.1cm Width: 2.8cm Other Size: As the picture shown Color: Chrome & Black Voltage: 12V Features: -100% brand new and high quality -12V 20AMP push button -Mounting hole diameter is 1.5cm -Push to make switch returns to off position when released. -This is the standard Horn / Ignition type switch. -Please check the size measurement chart carefully before making a.This is the standard Horn / Ignition type switch. 1 x Horn Button Push Switc. -12V 20AMP push button. Material: Diecast Aluminum & Plastic.