Check the listing for details. On/Off Key Switch 22mm 7/8" with 1-Hole Switch Box + Key. Condition: New. Listed at 12.99 USD. Brand New Switch Box + Key Switch Box:1 Hole: 7/8" (22mm) Diameter 2-3/8" (60mm) Internal Depth Behind Panel Fits All 7/8" (22mm) SwitchesExternal Dimensions: 2-3/4" W x 3" L x 2-1/2" H Made of Heavy Duty Plastic Switch:Provide the Best Security or Prevent Accidental Actuation Two (2) Switching Circuits: 1 Normally Open + 1 Normally Closed (DPST: Double-Pole-Single-Throw)Stackable Contacts: mix and match to suit your need (See picture below. Each switch ships with 2 contacts/circuits. Please purchase multiple switches to mix and match.) Contact Rating: 660V/10A, DC and AC Number of Terminals: 4Panel Cutout Diameter: 7/8" (22mm)Comes with 2 KeysSwitch Action: Maintained (Stay Switched)90º Rotation Between PositionsKey Removable at Either Position