Using these Ferm Living Host red wine glasses is a breeze. Just pour your favorite red wine into the glass and enjoy. When it comes to cleaning, since they are dishwasher - safe, you can simply place them in the dishwasher for a quick and easy clean. However, if you prefer hand - washing, use a mild dish soap and a soft sponge. To maintain their beauty, avoid knocking them against hard surfaces as they are made of glass. If you want to change up your table setting, you can choose from the different color options available. Remember, if you're not satisfied with your purchase, you can return them within 30 days.