Balance a heavy camera or rig with multiple accessories on your Ronin-S or Ronin-SC with the R025 Arca-Swiss Counterweight Kit from UURig. Included in the package are two 3.5 oz counterweights and an Arca-Swiss-type quick release clamp with an adjustable opening of 1.6 to 2". The clamp features threaded holes on the bottom, enabling you to mount counterweights as needed to balance your setup.