ARRI WCU-4 Motor Base Mounting Kit M3 Thread Fixed Connection Black

Triangle extension holder
Size: 30*30*30mm ±0.5mm (L*W*H)
Color: Black
Weight: 38g

Buttom Bracket
Size: 108*58*8.5/15mm
Color: Black
Weight: 88g

What's in the package: (based on your choose)
1 x triangle extension
or 
1 x buttom bracket
or 
5 pcs 1/4 screw
or 
5pcs 3/8 screw
or 
1 x triangle extension + 1 x buttom bracket
or
1 x triangle extension + 1 x buttom bracket + 5 pcs 1/4 screw + 5pcs 3/8 screw(the whole set acc.)