MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 5 with 20 Screws Engine Voltage Regulator Rectifier these mannequin heads for hats

these mannequin heads for hats are versatile and practical

the color of item may be slightly different from the pictures

(IS NOT 7/8" diameter

Easy to Write: Each one comes with a label and you can easily customize your labels

5mm interface options

MC-31 Wired Surface-Mounted NC Magnetic Door Window Contact Sensor Alarm Reed Switch, White, Pack of 5 with 20 Screws Engine Voltage Regulator Rectifier these mannequin heads for hatsProduct Information: Product name: Surface mounted Magnetic Door Switch, Type: MC 31, Color: White, Material: Plastic Specification: Contact Type: NC, Hole Dia.: 5. 8mm, Actuation Distance: 8mm18mm Sizes: 64*12.*12mm and 64*20*12mmL * W * H),pack of 5 with 20 screws. NC Type: NC means normally closed. If the magnet is closed to this switch, the signal is conductive, otherwise, if the magnet is far away from this switch, the signal is disconnected.