GT1 ProMediaGear Tomahawk Sidekick Gimbal Head Professional Heady Duty for Tripods or Monopods Arca-Swiss type base Quick Release Tomahawk converts your ball head into a gimbal head. It features a double dovetail base so it can be mounted on the top or side of the ball head for better balance, via quick release arca-swiss type dovetail. The side mounted clamp is also Arca-Swiss compatible and it works with plates that don't even follow the exact Arca standards. Independent lock mechanism on top let's you dial in exact amount of friction required and while doing so the entire assembly will stay absolutely rigid as the two systems inside are separate. The clamp lets you position the lens to achieve neutral weight balance point. Mounting via 1/4inch20 threads inside the mounting foot is also possible and extends the compatibily to virtually any third party camera quick release plates on the market. There are total of 3 1/4inch-20 threads on the foot giving you ultimate flexibility. Modestly rated for loads of 25 pounds, it can handle even the 600mm lenses with ease. Made in USA with 5 year warranty, we stand behind our product. Lens has to be equipped with a compatible Arca style plate and to mount the lens you simply slide it into the clamp adjust balance and lock it down tightly.