Features: 
 Compatible with HERO 3/3+, and HERO4 cameras 
 One-handed Operation: you can easy take photos by touching the wrench 
 Adjustable wirst strap: keep your Gopro camera secure 
 Pocket Sized & Lightweight. Ideal for snorkeling, scuba diving, and other water related activities 

Package includes:  
1 x Floating Hand Grip 

1 x Trigger Pistol 
1 x Adapter 
1 x Long Screws 
1 x Wrist Strap