The Jobu Design 2.5" Standard Quick Release Kit is the standard Arca-Swiss-compatible quick release for nearly every Jobu product. With stainless steel hardware and springs used internally, it's smooth, durable, free of sharp corners and functional under any conditions. You can use this quick release to upgrade an old Jobu gimbal head, convert a head into a side mount, or create your own custom project. They've been installed in 3D camera kits, shoulder-stock supports, mounting rails and other applications.
There are two holes spaced 0.6" apart forming a solid non-rotating platform: once it's installed you can stop worrying about your equipment loosening up from rotation and vibration.