Made of 100% extruded blend microfiber (80% polyester, 20% polyamide). Use with 16" pocket mop holders. Weighs 5.7 oz. Blue cleaning side and white backing with solid blue ribbing. Can be washed 600 times. The Pocket System features unique clips which securely holds the pocket mop during use and no-touch release so you don't touch soiled mop heads.