SmallRig Side Plate for Blackmagic URSA Mini/URSA MINI PRO APS1854C is exclusively designed for Blackmagic Ursa Mini/Ursa Mini Pro camera. ARRI locating holes could attach SmallRig 15mm Clamp with ARRI Accessory Mount 3/8"-16 Hole 2001. NATO rail could mount SmallRig EVF Mount 1594, and 1/4-20 threaded holes could attach accessories with 1/4 screws, like magic arms. Cold shoe could attach wireless voice receiver with cold shoe mount and SmallRig Articulating Rosette Arm(7") 1497. M6 threaded holes are utilized to lock the camera tight with screws. ARRI rosette could attach SmallRig ARRI Extension Arm 1807 and then SmallRig Right Side Wooden Handle 1941 for shoulder carrying. 4 Convexes fit the camera completely and reduce the pressure on the rosette, and 4 rubber cushions on them could prevent the cameras from scratches.