Using your Boldric 15 Yellow 9 - Pocket Waterproof Canvas Roll Knife Bag is a breeze. First, unroll the bag. You'll see 9 slots inside. Place your knives and other culinary tools in these slots. Make sure to put longer knives in the appropriate slots to keep them secure. The bag comes with a shoulder strap, so you can easily carry it around when you're on the go, like when you're traveling to different cooking gigs. When it comes to maintenance, since it's made of waterproof canvas, you can simply wipe it clean with a damp cloth if it gets dirty. Avoid using harsh chemicals as they might damage the canvas or the brass buckles. Remember, this item is not stocked, so if you need it by a certain date, contact the seller before placing your order. And always be careful when handling knives to avoid any injuries.