The GMC-Style Mirror Clamp is a practical and durable product made of stainless steel. It is available in polished stainless steel and features a GMC-style clamp mount with a 1/4 inch hole, making it compatible with most makes and models. The clamp also includes a slotted 5/16 inch hole, allowing for easy mounting of a West Coast mirror head or spot mirror. Sold individually, this mirror clamp is a versatile and reliable solution for securely mounting mirrors on your vehicle.