This Mercury Tilt Sensor Switch is commonly used to detect opening of hoods or trunks. Features a waterproof design and an adjustable tilt angle for precision installation. 5 per Bag, Commonly Used to Detect Opening of Hood or Trunk, Mercury Tilt Switch, Detects Open Zones, Waterproof Design, , , , , , , Weight (lb)0.2, Height (in)0.866,Width (in)3.622,Depth (in)5.748