Universal 40mm sink cover fits almost all sinks and bidets and perfectly covers the entire drain hole - here's why which model is best One of the reasons why it is popular in France Installation is done by simply placing the sink cover into the drain hole - it couldn't be easier - the height of the universal sink cover can be easily adjusted manually from 6.5 cm to Between 8.3 cm With a high-quality chrome finish that matches your existing bathroom and will last for years - we've also added an anti-scale layer to prevent calcification and ensure durability This basin valve has a durable rubber ring with four wings that stay perfectly in place without moving. We use high-quality materials like chrome-plated brass to extend the life of our drain plugs - ready for immediate use.