1. FLAT BOTTOM - Different from regular ones, our ceramic mug design with an aluminum alloy flat sheet, which is a perfect Heat Transfer for every coffee warmer(use with coffee mug warmer for the performance) 2. Aesthetic Design - Simple and elegant, wood color with black outside layer and white inside layer cup. Quality Speaks! When you hold it in hand, you can really feel the outstanding retro texture 3. Humanized Handle & Lid - To be more user friendly, we especially installed Hot-resistant Wooden Handle to the ceramic cup body, which will greatly improve the comfort holding the cup, brings smooth touch; Wooden lid to block the steam inside the mug and keep the drink warmer 4. Fully Equipment Mug Set Gift - Comes with 1 mug and 1 matching wooden lid. Perfect adorable tableware for daily use, and also a perfect ceramic mug set gift for your loved ones in all festivals: Mother's Day, Father's Day, Thanksgiving, Christmas, etc.