Using these cushions is a breeze. Just place them on your desired seating surface, and the Velcro straps will keep them in place. They can support up to 250 lbs, so most people can use them comfortably. When it comes to maintenance, clean them with warm water, mild soap, and a soft towel. Don't stack them as they're not designed for stacking. The floor protectors on the cushions help prevent scratches on your floors, so make sure they're always in place. Keep them in a dry area to maintain their quality.