[ mount switch]only one wall button should be applied on any garage door opener; Note: there are no wires included with the button, easy to install with screws [Specification]the button is between clear and white, seems opaque, dimension of the button and 2 screws part is . 2.8 x 0.71 x 0.71 inches/ 7.2 x 1.8 x 1.8 cm(H x W x D) [ green wall button]it features plastic black with white bar appearance, turn on/off with a satisfying click, and green, easy to find in the dark, nifty portable and userfriendly [ saving]low hardwired button, makes you experience and more like a charm [Compatibility]the universal button suitable with low chime system, good replacement for your garage door opener switches, Weight: 0.04299014109 Pounds, Manufacturer: COSINE