Thank you for purchasing your custom item from my shop. While every care is given to eliminate imperfections, remember these are handmade, custom items so traveling glitter and random bumps can occur. All tumblers and glassware are HANDWASH ONLY! Do not soak, excesssively scrub, place in a dishwasher, or microwave. Avoid exposing epoxy tumblers to extreme heat and sunlight, however please note that ALL epoxy will start to yellow overtime, especially when left in the sunlight. Keychain, pens, badge reels and phone grips are made with UV resin, and therefore you should avoid putting them in your mouth. Please handle all items with care.