This item replaces old catalog #3278B.
The Manfrotto 330B Macro Flash Bracket weighs only 0.8 lb, has a load capacity of 2.3 lb, and allows for a camera and two shoe-mount flash units to be used simultaneously on a tripod head. Goes on either 3/8" or 1/4" tripod screws and can accommodate the camera in the vertical or horizontal position.
This item replaces old catalog #3278B.
Use for 8 years, one broke apart after ~5 years, the second is still working fine. It is relatively slow to mount, it is relatively heavy, but I did not see anything comparable on the market to enable me to put two heavy flashes on sides of the camera for macro and regular close-distance settings in the field. I always have this bracket in my photo backpack.
The arms fall out of place easily. Will need some modifications with the screws to firmly hold still the flash in a desired position.