Shock-Absorbing Arm Vacuum-Style 4" Suction Cup Spring and Adjustable Hydraulic Damping Z-Axis Vertical Shock Absorption 1.3 lb Load Capacity 1/4"-20 Screw and Dedicated Osmo 3 Mount Compatible with Multiple Action Cameras Mounting Bracket and Support Arm Includes Counterweight for <5.6 oz Rigs Zippered Case with Foam Cutouts