This mount for the 3.5 inch Holley screens is designed to be mounted under the dash for a non-intrusive install. It has a hinged mounting bracket with bolts to secure it in the position you want it in. It will work with the Terminator x, Dominator and Snipper EFI set ups. The screen fits snuggly in the holder so it will not rattle or fall out. It is made from durable ABS plastic so it will survive the heat and cold. It comes with two (2) #8 self tapping screws and the hardware to assemble it.