Compatibility: Fits Sigma01, Sigma10, Sigma20, Sigma21, Sigma30, Sigma50, and Sigma60 dual flush systems for a seamless replacement. Chrome finish: Chrome buttons and frame deliver a modern, clean look that suits most bathroom decor. Color options: Available in silver, black, white, khaki, and gold to match your fixtures and interior style. Material and durability: Made from robust plastic designed for daily use while maintaining an elegant appearance. Performance and reliability: Engineered to provide consistent operation in a dual flush system. Use scenarios: 1) Replacing a worn dual flush control on a Sigma series toilet to restore function and aesthetics. 2) Upgrading bathroom style by selecting a color that coordinates with existing hardware. 3) Stocking for households with multiple Sigma models to enable easy, compatible replacements without compatibility concerns.