... of high tech zirconia, never be worn and torn. 2. enviroment friendly. 3. multifunctional The Ceramictool is know as ... high tech materials zirconia, never be worn and torn.2. enviroment friendly: lead free, non-poisonous,nveer got ... high tech materials zirconia, never be worn and torn.2. enviroment friendly: lead free, non-poisonous,nveer got ... cleanly. 4. will never change (its) colour New fruit knife