Using these Stelton Pilastro glasses is a breeze. Just pour your favorite drink, whether it's cold water, fresh juice, or a warm cup of tea. You can stack them up when not in use to save space in your cabinets. When it comes to cleaning, simply wash them with mild dish soap and warm water. Avoid using abrasive sponges as they might scratch the glass surface. Store them in a dry place to prevent any damage. If you have any issues, remember these glasses are covered by our 30 - day return policy.