"Longpi pottery from Manipur is made from a mixed paste of ground black serpentinite stone and special brown clay, which is found only in Longpi village. The pots are manually shaped, polished, sun-dried and fired in a bonfire. The black color of Longpi ham is a result of polishing the heated earthen pots with a local tree leaf. ""Terracota by Sachii"" brings you this heritage pottery, functional as well as beautiful! Set of 4 small coffee mugs and a tray Material : Ground Serpentinite Stone + Clay, Cane Dimensions : Each Coffee Mug : 4.5 inches width with handle, 3 inches diameter, 2.75 inches height; Tray : 15x4x1.5 inches; Color Black + Beige Wash & Care : Wipe with damp cloth. Wash with warm water, use mild soap if required. Dry completely before storing. To be shipped within 3-5 days of placing the order."