Using these chairs is a breeze. Just place them wherever you need seating, indoors or outdoors. They're great for a patio, garden, or inside a restaurant. Remember, they can hold up to 400 lbs, so don't exceed this weight limit. When it comes to stacking, you can stack up to 5 chairs high to save space, but be careful when doing so to avoid any accidents. For maintenance, simply wipe them clean with a damp cloth. Since the metal frames are rust - resistant, you don't have to worry too much about outdoor exposure. And because they come pre - assembled, you can start using them right away.