Avenger D600 Mini Boom (Chrome-plated) B&H # AVD600 MFR # D600 - https://www.bhphotovideo.com/c/produc...

This boom arm works perfectly on the Avenger Sliding Leg C-Stand (Chrome-plated, 10.75') B&H # AVA2033L MFR # A2033L - https://www.bhphotovideo.com/c/produc...

See my review -    • C Stands Matthews vs Avenger in 4k UHD  

Avenger C Stands and the D600 boom arm are made by Manfrotto in Italy.