1. Material: Aluminum alloy CNC machined, lightweight, durable for use. 2. Function: Your action camera can be safely fixed on the helmet. 3. Compatible: Universal fit for GOPRO, fit for Coyote, fit for YI, fit for GITUP and other sports cameras. 4. Easy Installation: The helmet camera mount comes with gaskets, no other tools needed, easy to install and operate. 5. Portable: The helmet base adapter is easy to carry, accessories for sports lovers, great for leaving hands free while still shooting photos or video. 6. Specification: - Material: Aluminum alloy - Color: Black - Size(LxW): About 46x40.5mm/1.81x1.59inch 7. Package includes: - 1pc x NVG Helmet Mount - 1pc x Adhesive pad - 2pcs x Plastic gasket 8. Note: - 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. - 2. Please allow 1-2 cm differences due to manual measurement.