lbs: 2.280

kg: 1.04

lbs: 8.8

kg: 4

** Max. Weight load when the arm is fully open

Aluminum

mm: 279

inch: 11.02

Bottom External: 3/8″-16 EXT.

mm: 279

inch: 11.02

Top External: 1/4″-20 + Nut

mm: 440

inch: 17.32