Mr Muscle Kitchen Drain Unblocker 250g gives you a powerful and efficient way to unblock sinks and basins. The concentrated formula easily dissolves hair and melts grease which can result in the slow draining of water, without damaging plumbing systems. It's incredibly easy to use and safe for all pipes. Mr Muscle Drain Unblocker can also eliminate bad smells and a build-up of sink and plug hole residue. Treat your drains to a deep clean. Warning: Contains sodium hydroxide. Causes severe skin burns and eye damage. May be corrosive to metals. Keep out of reach of children and always read instructions before use.