Black On-Off-On Rocker Switches. High quality 3 position on-off-on rectangular rocker switch. These switches are ideal for many applications including use for cars, boats, hobbyists etc. If you need the 2 position on-off version of this switch then (Please click here to order) OVERALL SIZE: 30.5mm x 13.5mm x 31mm(L x W x H) PANEL HOLE SIZE: 29mm x 10.5mm PINS: SPDT 3 Pin. RATING: 15A 250VAC TYPE: KCD3-101/3P I am a fully qualified TV engineer with over 30 years experience, so please contact me if you have any questions and I will get straight back to you. Thanks for looking.