ITEM NAME:3PDT 9 Pins Box Stomp Guitar Effect Pedal Foot Switch Metal T Rex,Retro FX Description: - For rewiring vintage padals or effect boxes - There are a total of nine lugs on each switch,three per pole. - The third pole can be wired to control an LED status light or other custom function. - For ,Electro-Harmonix, T Rex,Retro FX,Radial Bigshot,ect effects pedals - For unbuffered bypassing/true bypass of the effect circuit without coloring the tone of the instrument or other components in the signal chain. Specification: - Material: electronic components - Size: 20x17x43 mm / 0.78x0.66x1.69 inch Package Included: 1 piece foot switch.For ,Electro-Harmonix, T Rex,Retro FX,Radial Bigshot,ect effects pedals. - There are a total of nine lugs on each switch,three per pole. 1 piece foot switch.