Arca-Swiss design, It fits all the Arca-type quick release adapters, which are made by many different companies such as Acratech, Arca-Swiss, Foba, Graf/Studio ball, Gitzo, Novo flex, NPC and Wimberley This LP Series quick release plate for lenses is made of satin black anodized aluminum Dual Safety Stops. The safety stops at the front & back of the lens plate prohibit your lens from accidentally slipping out of the quick release adapter(easily removed with supplied hex wrench if desired) Works with All Common Flash Brackets. Drilled holes accept flash arms from Kirk & Really Right Stuff. Dimension (H x L x W) : 11.80MM x 200MM x 38.10 mmFotasy is a registered trademark