50pk White Terminal Pill Magnetic Door Window Contact Reed Switch Security Alarm

Size: 1-1/8" x 7/16" x 1/4" Operate 3/4" Gap minimum 3M Adhesive Easy & Quick installation Allows for window track installs without drilling into the frames When the magnet is next to the switch, the loop is open When the magnet is pulled away the loop closes White Color Package of 50