Description: Full metal material, anti-vibration, durable and lightweight. Flip Up and Down Design, angle adjustable. Come with screwdriver for installing onto the helmet. Metal night vision goggles holder for FAST, MICH, AF, Wendy and M88 helmet etc. Designed for GS1x20 (Monocular Night Vision Goggles). Specification: Material: Aluminum Alloy Size: approx.17x10x12cm / 6.8x3.9x4.7inch Color: Black Package Includes: 1 Piece Night Vision Goggles Holder 1 Piece Screwdriver