SmallRig Multi-purpose Cheese Plate 1681 is a top mounting cheese plate, which can be used on the top of the Blackmagic URSA Mini Camera. This cheese plate comes with arrays of mounting holes in standard 9mm spacing, so that you can attach kinds of accessories to it, such as rail blocks, top handles, dovetails, etc. The built-in ARRI locating holes are provided for ARRI compatible extension blocks.