Using your DeWalt DWST08330 ToughSystem 2.0 Three - Drawer Tool Storage Unit is easy. Just open the drawers using the smooth ball - bearing slides to access your tools. You can stack it with other ToughSystem units by using the one - touch release latches for a customized storage setup. When using it, make sure not to exceed the load capacity of 43.5 lbs per drawer. For maintenance, simply wipe the unit with a dry cloth regularly. If there are any stubborn stains, you can use a mild cleaner. Keep it in a dry place to prevent rusting and damage.