DIVEPRO FB25 FB51 FB55 FB60 Buoyancy tube Increase buoyancy can be fitted over the battery pack

Hard material, capable of withstanding 150 meters of water pressure without deformation. FB25 Size: external diameter*height*inner diameter=97*70*25mm Buoyancy Force: +420g Suitable for ball head connecting rod FB51 Size: external diameter*height*inner diameter=97*70*51mm Buoyancy Force: +330g Suitable for B06 battery pack FB55 Size: external diameter*height*inner diameter=97*70*55mm Buoyancy Force: +300g Suitable for B13 battery pack FB60 Size: external diameter*height*inner diameter=97*70*60mm Buoyancy Force: +280g Suitable for B07 battery pack