SmallRig Top Plate for Blackmagic Ursa Mini/Ursa Mini Pro 1853 is exclusively designed for Blackmagic URSA Mini/URSA Mini PRO camera. The NATO rail on the top could attach SmallRig Quick Release Cheese Handle 1649 and SmallRig DSLR Action NATO Handle 1955. 1/4’’-20 threaded holes could attach SmallRig Top Handle with Cold Shoe(Cheese) 1638 and SmallRig Camera/Camcorder Action Stabilizing Universal Handle 1984, or attach Cool RailBlock 15mm Rod Clamp 1078 for dual rods. ARRI locating holes could attach SmallRig 15mm Clamp with ARRI Accessory Mount 3/8’’-16 Hole 2001. 3/8-16 threaded holes could attach accessories with 3/8’’ threaded holes, such as magic arm. Cold shoes could mount microphone, SmallRig Articulating Rosette Arm(7″) 1497 and SmallRig 1/4″ Camera Hot shoe Mount with Additional 1/4″ Screw 761. 1/4 threaded holes could attach camera via 1/4 screws. The design is also good for heat dissipation and weight loss. In addition, the lock mount could lock the handle firmly.