Hand tight adjustability + 4mm hex wrench lockable thumb screw.

Specifications
CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface
Compatibility: Combo Mounts, Light&Camera Mounts.
Aluminum knurled thumbscrew
Stainless Steel bolt with 4MM hex feature
Anodized Color: Black
Made in Boise, Idaho, USA

Mfr Claimed Weight
10g