GoPro Mounting Accessories.
For GP08 : 
Available in Black Colour

For 2 Short 1 Long: 
Available in Green/ Orange/ Pink
1.  Gopro thumb screw is made of high quality aluminum alloy,while the shaft and acorn nut are made of stainless steel,which is stable enough for preventing any crash to protect your Gopro when use in any position.
2.  Gopro thumb screw perfect for the Extreme Sports,like skydiving,Off-road cycling,outdoor rock climbing,mountain downhill,extreme rafting,desert crossing,autocross.
3.  2 short screws and 1 long screw,most appropriate kit for installing on GoPro,like 3-way adjustable pivot arm or bicycle mount.
4.  With rubber ring for preventing abrasion and loose.
5.  Solid design means if you need completely tightness,you need one more aluminum wrench instead of using your hand.