S4Optik Counterbalanced Third Arm

This counterbalanced third arm from S4Optik is designed for use with S4Optik instrument stands.

• Accomodates instruments up to 30lbs (13.6kg) with the optional 3rd arm
• Ergonomically designed lever mecahnism (same as refractor arm)
• Vertical range of 12.5″ (31.75cm)