Features:

It is mainly suitable for GOPRO 3 NVG MOUNT.
Plastic and metal material, very durable for use.
Small size, easy to install and remover.
Your action camera can be safely fixed on the helmet.
Best accessories for extreme sports lovers, enthusiast.
Quick release, very convenient for use.

Specifications:

Material: ABS + Metal
Color: Black
Size: 56x40.5x29.5mm
Compatible with:
For Gopro Hero 5 4 3 3+ 2 1

Package Includes:  

1 x Helmet Aluminum Fixed Mount Aluminum Mount
    
Kindly Note: 

If you need a huge quantity, contact us to get more competitive offer. 

Shipping and Payment:   

Payment : Paypal
Shipped within 2 business days once payment done. 
10~27 days to reach you. 

Refund and Guarantee:

30 Days Money Back Guarantee
180 Days - Free Exchange
Please contact us with any questions or concerns,we will solve it until you satisfy.