This Top Handle Kit with Cheese Easy Plate from Niceyrig is compatible with camera cages with 1/4"-20 accessory mounting as well as the Blackmagic Design URSA Mini. It features numerous 1/4"-20 and 3/8"-16 threded mounting holes and provides a wide-range of mounting options for accessories such aqs microphones, monitors, EVFs, and more. Made from anoized aluminum for lightweight durability and corrosion resistance.
Not the most comfortable handle on the market for sure but if you can leave without that it's a really nice sturdy handle. The thumbscrews are really nice, it locks firmly. You can find spare parts easily too. Material is great. Minus maybe: On my model, I always need to lock the big top screw with an Allen key to get it really locked. I found it very useful to help me carrying a camera package using only the Nato clamp part, coupled with the Upper Arm of a Ronin2 and a Ready-Rig vest. It works very very nicely.
Simple to attach, reversible if longer lens needs to be used and mainly a good quality product