The SpiderPro Clamp allows you to use your SpiderPro or SpiderLight Holster with any Arca-Swiss type plate or L-bracket. Complete with anti-twist pin features, this clamp works with equipment from other manufacturers such as Wimberley, Really Right Stuff and Kirk. Designed to be secure and easy to use, simply tighten the pressure knob clockwise and attach the Clamp’s sliding jaws to any Arca-Swiss style plate or bracket. Un-screw the pressure knob and you are free to connect the camera to your tripod. SpiderPro PRO CLAMP (ARCA-SWISS STYLE) SKU725 Product Highlights • CNC Machined Aluminum Frame & Stainless Steel Pin • Compatible with any Arca-Swiss style bracket • Anti-twist Spider Pin features • Secure hold via pressure knob • Proudly ‘Made in the USA’ • Weight - 4.22oz (121g)