Black coffee mug. Great gift for a scientist or researcher! Used, good condition. See photos for measurements. I’m happy to answer any questions you may have! I’m usually open to all offers and bundles! Everything comes from a smoke-free home ♻️ FYI I usually send with recycling shipping materials 📦✉️ If this is your first time on Poshmark, use my referral code LONDONROME410 to receive $10 off your first purchase! 🤗