Designed to be Used Wherever Life Takes You, the Ember Tumbler Does More Than Simply Keep Your Coffee Hot. Our Largest Mug Yet, the 16 Oz Tumbler Allows You to Set an Exact Drink Temperature & Keeps It There for Up to 3 Hours, So Your Coffee is Never Too Hot, or Too Cold. It Features Our Most Advanced Chip Ever for Improved Bluetooth® Reliability & a Simplified Pairing Process. All Tumblers Come with Two Lids, Letting You Choose Between the Leak Proof Handle Lid or Spill Proof Sliding Lid. Stainless Steel Metal with Bpa Approved Ceramic Pottery Coating. Available in Black. Minimum Quantity: 10