XtraArm Roller Rest w/ Ballhead Adapter Black. It allows you to quickly move between windows making it ideal when youre unsure where your target will appear or need to shift positions fast. The rolling base combined with the articulating arm gives you smooth repositioning and precise control without sacrificing stability. It takes up less space than a traditional tripod and is easier to maneuver in tight blind setups. The Ballhead Adapter features a standard 3/8''-16 stud allowing you to mount your own ball head for maximum flexibility and control. It also makes this setup an excellent option for filming giving you smooth camera movement between windows. Assembly is quick and simple typically taking under 30 seconds. While the system is extremely stable it is on the heavier side making it better suited for more permanent blind setups rather than frequent transport. You can also purchase the shooting stick conversion kit allowing you to remove the wheel system and convert the Solo extensions into a shooting stick in seconds. Specifications for XtraArm Roller Rest w/ Ballhead Adapter: Manufacturer: XtraArm Color: Black Package Contents: XtraArm Roller Rest w/ Ballhead Adapter XtraArm XTRA-RRCAM: Roller Rest w/ Ballhead Adapter Black