iflight Black CNC Alloy Aerial Photography Converter Mount Adapter for DJI RONIN-M&DJI RONNIN DJI RONIN-M Accessories Perfect support DJI Ronin and Ronin M to do aerial photographing,can also be used for shooting by a car, rocker arm, tripod, UAV etc. Outside diameter 55MM,Height 27MM,Weight 120 grams,inner hole 1/4 inch stand hole Ship to USA via USPS first class proprity mail, estimated delivery 5-12 days