Stainless Steel Outer And Inner With Ceramic Inner Coating | Inner Ceramic Coating Eliminates Metallic Taste And Protects Stainless Steel From Staining | Ceramic Coating Allows For A More Robust, Natural Flavor | Double Wall Construction For Insulation Of Hot Or Cold Liquids | Vacuum Insulated | Snap-On, Spill-Resistant Thumb-Slide Lid | Meets FDA Requirements | BPA Free | Hand Wash Recommended. Approximate Size: 5″ H, Imprint Area: Silk-Screen: 2 1/2″ W x 2″ H … Wraparound: 5″ W x 2″ H (Silk-Screen Only).See General Information For Details On Wraparound Imprint. Optional 4-Color Process: Standard: 3″ W x 2″ H … Large: 5″ W x 2″ H … Vertical: 2″ W x 2.75″ H (Must Specify on PO).Optional Laser Engraved: 1 1/2″ W x 2″ H.Standard Imprint is Horizontal. For Vertical Imprint, Must Specify on PO.