SMALLRIG ChromLives 15mm Rod Clamp Mount 3 with Cold Shoe Mount Adapter, Wingnut Black The Cold Shoe Mounting Spud is a machined accessory that enables you to attach a cold shoe-mounted accessory to rigs or camera setups a Cold Shoe Accessory add 90 degree 15mm RodClamp to any industry-standard 15mm rail system. Material: Aluminum Alloy Net weight: 0.086g