Greleaves 9 in 1 Dog Fetch Harness Chest Strap & Accessories Bundles Kit for Gopro Hero Session, Hero4 Silver, Hero4 Black, Hero 3+/3/2/1 Camera Accessory Kit for SJ4000 SJ5000 SJ6000 Compatible with Go pro Hero 4, Hero 4 Black, Hero 4 Silver, Hero 3, Hero 2, Hero, Hero Session. With full adjustable design, suitable for all kinds of dogs, you don't worry to make your dog uncomfortable. You are able to have a look the world and scenery from his/her point of view and know where his/her always go out. You can install the Go Pro Action Camera on his/her back or his/her chest to take a record. The package consists of dog harness, vertical quick release buckle, quick release buckle and screw.