Type III difficult coat anodizing Aluminum alloy Standard clamp used to connect two arm, baase adapters and strobes together. ( Puts 2 ball collectively ) Works with 1Inch ball arms for CamDive, Meikon, Ikelite, TLC, Ultralight, Nauticam and others Colour:Black Material:Aluminum alloy Size:10 x 4 Package Contents: 1 * Flash Light handle Mount Only the above package content, various item should not included. Note: Light reflection and diverse displays could cause the colour of the thing within the picture a little bit different from the genuine thing. The size allowed error is +/- 1-3cm. Type III demanding coat anodizing Aluminum alloy Standard clamp used to attach two arm, baase adapters and strobes together. ( Puts 2 ball together ) Works with 1Inch ball palms for CamDive, Meikon, Ikelite, TLC, Ultralight, Nauticam and others Colour:Black Material:Aluminum alloy Size:10 x 4 Package Contents: 1 * Flash Light handle Mount Only the above equipment content, varied merchandise are not included. Note: Light reflection and various exhibits could cause the color of the article within the photograph somewhat various from the real thing. The size allowed error is +/- 1-3cm.