lbs: 1.430

kg: 0.650

lbs: 17.6

Kg: 8

** Max. Weight load when arm is fully open

Aluminum

mm: 133

inch: 5.25

Bottom External: 3/8″-16 EXT.

mm: 133

inch: 5.25

Top External: 1/4″-20 + Nut

mm: 226

inch: 10.05