The Model #4 Dual Arm Boomerang is a lightweight tray design manufactured of hard anodized black 6061-aluminum, with Delrin, and features a camera forward design. This keeps your hands and lighting out of the picture, with the new super wide-angle lenses now available. The handles are fixed and have 7.5" (19cm) between them. Model #4 Action Camera Tray System comes partially assembled you simply need to attach the grip handles. Light mounting hardware and tools are included. The tray system weighs 16 oz. (453.6 g), the tray width is 9.5" (24.13cm) and the actual arm length is 14" (35.56cm). The overall height is 17.5" (44.45cm) when arm is extended straight-up. The flex arm features 12 beads/joints for maximum flexibility, giving you an array of possible lighting angles and positions. There are 5 models to choose depending on lights to be mounted. Models available are: Bigblue lights, UK Aqualite Lights, all YS Type Mount, Lights & Motion Sola Lights and universal mount. The Dual Arm Boomerang has 303, 304 and 18/8 Stainless Steel Hardware. Arms are durable Delrin acetal resin.