XtraArm Roller Rest w/ Ugrip 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 U-Grip attachment works great for virtually any rifle or crossbow providing a secure hold with smooth adjustability. 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/ Ugrip: Manufacturer: XtraArm Color: Black Package Contents: XtraArm Roller Rest w/ Ugrip XtraArm XTRA-RRU: Roller Rest w/ Ugrip Black