Your own thoughts might be the most powerful tormentors in existence—but these 15oz mugs (0.44l) can help you battle back. Super grippy C-shaped handle? Check. Glorious glossy black ceramic finish? Check. Perfect canvas to showcase your creative talents? Double check. So, go ahead and customize these mugs to your heart's content—all without lead or BPA. It's time to toast to less thinking and more drinking.