1. Cistern Outlet Compatibility The push button fits cistern outlets of 1.5 inches and 2 inches, providing broad compatibility for multiple toilet models and straightforward replacements. 2. Cable Length and Adjustable Overflow Pipe Cable length is 27.5 cm. Overflow pipe is adjustable from 18.5 cm to 33 cm. This offers flexible installation to accommodate different cistern depths and mounting configurations. 3. Chrome Oval Dual Flush Button Chrome oval dual flush button with a width of 6.5 cm. Includes a 1.5 cm threadthrough hole for easy installation on the cistern. 4. Installation and Customer QA Guidance Please review the installation instructions and check the Customer Questions and Answers section before ordering. Use scenarios Replacement in toilets with 1.5 inch or 2 inch cistern outlets during maintenance or bathroom updates, ensuring compatibility and reducing install time. Renovations where flexible mounting is needed, using the 27.5 cm cable and 18.5 cm to 33 cm overflow pipe to fit varying cistern depths. Upgrading to a chrome oval dual flush button to improve aesthetics while maintaining reliable performance and potential water efficiency benefits.