CH4x4 Rocker Switch Eject Button Symbol Horizontal is a single throw ON OFF switch designed to operate your 12 volt accessories. They have a face surface size of 2(50mm) x 1(25mm) and uses a standard din size mounting hole of 1.41(36mm) x .86(22mm) this is the standard size of most switch holes in modern vehicles, however it is best to check your particular hole size if unsure. All symbols are laser etched directly onto the switch face to ensure long image life. We do not use stickers or ink which will wear off in a very short time.