This 400mm mop head is a premium blend of nylon and polyester which creates an optimum performing microfibre head that will pick up 50 more dust and dirt than a traditional woven mop the pad can be washed and reused up to 100 times and thanks to the double finished edges it will retain its shape throughout usage attaching securely to the mop during use it is easy to remove and wash when necessary picks up 50 more dirt and dust than traditional mops double finished edges retain shape pad