This  packge setup comes with 0.6 KG  buoyancy under the water . one of the best choice to lighten your photographic gears over 2 KG . using 60 MM * 8 inches  carbon fiber buoyancy arms each side with 2 pcs of aluminum 4 inches arms which perfectly allows you to position the angle of the lights effortlessly

Specification of Carbon fiber Buoyancy :

Size : 60 MM * 8 inches 
Buoyancy : 300 G underwater for 8" float arm of each 
Material : Carbon Fiber

Specification of Camera Tray :

Inner Space between the handles 26-29CM Collapsed | Extended

Material : Aluminum 6061
Size :Height - 7.5" / 18.5 cm ,Width - 2.5" / 6.5 cm, Weight - 580g

Fit for : Camera Housings with 1/4 inch screw holes such as Meikon,Fantasea, Canon, Sony,Olympus, Sea & Sea, Nuaticam, Isotta,ect