・Acratech quick release plates are designed to allow access to all camera controls and functions without removing the plate.・Acratech quick release plates are designed to provide maximum contact area to the bottom of the camera increasing stability and helping to minimize flexing ofthe camera body.・We do not cut a groove under the head of the mounting screws which weakens them at a point where they are already most likely to break.・Our plates are precision C.N.C. machined from solid 6061 T-6 aluminum. We do notuse inferior castings like some manufacturers.・Made in the U.S.A.・We use advanced computer aided design software to create super strong lightweight plates.atat The Universal cork-top plate will accept cameras with 1/4''-20 tripod thread and features an anti-rotation lip just like the camera specific plates. This high quality plate is precision machined from T-6 aluminum. Plate features a satin black anodized finish and is ''Made in the USA''. Acratech quick release plates are compatible with any ''Arca-Swiss'' type quick release system (like Arca-Swiss Graff Wimberley Foba etc).