SeaLife SL9901 Flex-Connect Arm Compatible with Sea Dragon SL963, SL983, SL984 Fiber-reinforced polycarbonate and marine grade stainless steel for maximum holding strength and durability Flex-Connect mounts easily &quot;click&quot; into place, underwater or on land Can be disassembled with the push of a button Flex-Arms to extend your lights with 100-degrees of bending motion Quick way to adjust to any dive environment