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 decors. 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.