coffe mug 1any desigh is welcom 2microwave and dishwasher safe 3high whiteness and durable 4promotional mug coffe mug1.onsistent qualityIn terms of visual aspect and size, whiteness, vitrified strong body, edge chip-resistance and thermal shock quality. Each item is guaranteed to be lead-free, fully vitrified, microwave-safe, oven-proof, and dishwasher-friendly.2. Fully vitrified w/low water ...