Opteka CBW-1 Counterbalance Weight (1.85KG) for the CXS-1 & CXS-2 Video Shoulder Support System Weight: 4.1 lbs (1.85KG) Transforms the CXS-1 & CXS-2 in to a hands-free rig with the CXSB-1 system strap added May be used with or without the CXSB-1 system strap Includes bracket, hex screws and hex key 1 Year Warranty