The ARRI SMB-1 is a French flag support with sliding accessory mount designed to fit the top of the SMB-1 and particularly well suited for ultrasonic sensors such as the ARRI UDM-1

The ARRI SMB-1 is a French flag support with sliding accessory mount designed to fit the top of the SMB-1 and particularly well suited for ultrasonic sensors such as the ARRI UDM-1