Type:Waterproof HousingsModel Number:Cold Shoe Ball ConnectorCompatible Action Camera :Underwater cameraType:Ball to Cold Shoe Mount AdapterFeatures:for mounting underwater light/strobe directly to your housingArm Ball AdapterScuba Diving Underwater Photography with anodized coating for enhanced protection.,easy to use and carry.The ball arm adapter head is a hot shoe,which can directly connected to the waterproof shell or other hot shoe equipment.The bottom with metal gasket, strong and durable.Great accessories for underwater diving photography lovers.Materials: Aluminum AlloyBall Diameter: . 25.4mm/ 1 inchcolour:Black + redPackage Contents:1 * Hot Shoe Ball ArmOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.