Made of Metal and Plastic Material, 2 Pin, 12mm Thread Diameter, SPST Guitar Foot Switch. The switch can be used to rewire vintage padals or effect boxes, for unbuffered bypassing/true bypass of the effect circuit without coloring the tone of the instrument or other components in the signal chain. Item Name : Guitar Foot Switch Action Type : Momentary ContactType: SPST Terminal Quantity: 2 Pin Size: 38.9*27.3*8.7mm Material: Metal, Plastic Color: Black, Silver Tone Weight: 22g/pcs Package Content: 4 x Guitar Foot Switch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.