Phase three, layers from 18 to 9 feet down[1] contained 'Dabban' blades that are 40 to 15 kya.[2] A Dabban is an early type of blade industry called a blade-and-burin industry.[4] This type of blade is thought to be the oldest blade of the Upper Paleolithic and is only found in Haua Fteah and another nearby site.[4] The origins of the Dabban is still unknown completely.[4]