These Ferm Living ripple glasses are a great addition to your kitchen. You can use them for any meal of the day. Just pair them with a suitable carafe for an elegant look. When it comes to cleaning, they are dishwasher - safe, so you don't have to worry about hand - washing. However, to keep them in the best condition, try to avoid hitting them against hard objects. If you choose to hand - wash, use a mild dish soap. And remember, if you're not satisfied with your purchase, you can return them within 30 days.