Universal Compatibility: This toilet flush button kit fits cistern lid holes of 20mm, 40mm, 50mm, and 60mm, making it a versatile choice for nearly any bathroom setup. Its universal design ensures it can replace a wide range of existing flush systems with ease. Water-Efficient Dual Flush System: Equipped with options for both full and half flush, this kit promotes water conservation, which can significantly reduce your water bill and help the environment. Ideal for families looking to enhance their home's eco-friendliness. Luxurious Brushed Brass Finish: Upgrade your bathroom's aesthetics with this kit's premium gold-toned brushed brass finish. It adds a touch of elegance and luxury to your toilet, complementing any modern or classic bathroom decor. Complete Installation Kit: This package includes everything needed for a hassle-free installation: a push button, shell, washer, sheath, square rubber, and nut. Designed to provide a secure and reliable upgrade to your toilet's flushing system. Easy Installation Process: The kit is designed for quick and straightforward installation using standard household tools. It comes with detailed, illustrated instructions that guide you through the setup process, ensuring a perfect fit and function. Color: As Shown Material: ABS Package Contents: 1* Water valve button