This is a direct replacement quick release plate for the ProMaster GH30C Carbon Fiber Gimbal head (product code 2544) and also for the ProMaster GH26 Aluminum Gimbal head.. It has both 1/4-20 and 3/8-18 mounting bolts as well as a spring-loaded, retractable anti-twist pin. The anti-twist pin is removable. Two safety bolts on the bottom of this QR prevent it from accidentally sliding off the head. The safety bolts are removable. This QR uses a dovetail design that is also compatible with most other types of heads using an arca-swiss style quick release system.
Dimensions: 4" x 1 21/32" x 15/32" / 101.6 mm x 42 mm x 11.9 mm (including safety bolts)
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