Features:

Designed to save your camera if dropped in the water, it doubles as a hand grip and a floatation device. Designed to save your camera if dropped in the water,
it doubles as grip AND a floatation device. Professional
custom rod buoyancy handheld stick, to be used in water sports
Floating sponge also included in kit for even more buoyancy
Dimensions: 150mm height
Fuction: To save your camear if dropped in the water,  easy to find it
Perfect For:  Surfing/  Diving/  Swimming
Weight: 50g
 
For:

For Gopro 7 6 5 5S 4S 4 3+ 3 2 1
For SJCAM SJ4000 SJ5000 SJ6000 SJ7000 M10 M20 SJ6
For xiaomi yi xiaomi 4K
For EKEN H8 H8R H9 H9R W9

Compatible with all types of camera movement of the protection box camera 
Package list:
1x Bobber
1x Hi-Torque Thumbscrew
1x Wrist-Strap Attachment

Buyer friend Note :
1. this product does not include the way the camera, remote control and other equipment.
2. buyers order problems (if the goods are in transit, missing parts, damaged) please don't bring disputes and one bad review, please