Instrument control devices offers a snap-in fixing led holder with built-in block. This one-piece led holder is designed to occupy minimum space on the panel, and is suitable for 5 mm leds. The unique feature of this led holder is built-in lock, which holds leds securely in the holder, and prevents them from coming out from the rear, when pushed from the front. These are to be snap fitted in 6 mm round hole. These are available in five attractive colours: red, green, yellow, black and white.