Size (length*width*height): 7cm x 5cm x 7cm

Proocam Pro-J079 Helmet Arm Mounth and Screws set is motorcycle riders, racers and cyclists tailored 180-degree viewing angle GOPRO helmet mounting bracket. To get the Perfect angle, light weight, rugged, reliable, easy to record their every moments.

Package Included:
1x Helmet Extension Arm
1 x Basic Buckle
1 x Curved Adhesive Mount
1 x 3mm sticker
2 x Screws

Compatible
Gopro Hero 1 /2/3/4/5/6
SJCAM SJ4000, SJ5000 (need to buy the convertor)
Mi YI (need to buy the convertor)
Sony Action Camera (need to buy the convertor)