This is the, angled, metal fuel inlet banjo for the Dellorto VHB, VHBT and VHBZ series carburetors with 8 mm fuel union.
As visible in the photo, the fuel line union is set at an angle of some 45 degrees.
Required quantity per carburettor: 1
This is item number 59 in the drawing.
This banjo uses fuel line with an internal diameter of 8 mm.