1、Aluminum Alloy Material: Helmet bracket is made of aluminum alloy, with good wear resistance and friction resistance, durable. 2、Good Load Capacity: The helmet bracket has a strong load capacity, is lightweight, has small tolerances, and supports the standard interface of squid stem. 3、Applicable Models: This helmet night vision base is suitable for Wendy, for AF, for FAST helmets, easy to install and long life. 4、Full Set of Accessories: The set is accompanied by three screws and nuts, the bracket is easy to replace are very simple. 5、Ideal Replacement: If you want to install a night vision device to your helmet, then this 3 hole shroud will be the best choice for you. Item Type: Helmet 3 Hole Shroud Material: Aluminum alloy 1 x 3 Hole Shroud 3 x Screw 3 x Nut