Using these Klein Tools canvas bags is a breeze. Simply unzip the heavy - duty brass zipper to access your tools or materials. You can use the different colors to sort your items according to specific job tasks. For example, keep all your electrical tools in the red bag. To store them, you can hang the bags using the brass grommet. When it comes to maintenance, spot - clean the bags with a damp cloth if they get dirty. Avoid using harsh chemicals as they may damage the No. 8 canvas. Also, don't overstuff the bags to maintain their shape and the integrity of the zipper and grommet.