Zacuto Zgrip Z-Mount Zwivel Articulating handgrip that allows you to change the angle between two 15mm rods Includes a 4.5" rod and a Z-mount Zwivel Supports all 15mm rods with a quick-release handgrip Employs a single lever that controls both the 15mm rods Allows you to change the angle between the 2 rods via loosening the single lever