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Keith 220ml Titanium Mug,No Lid  Material:Pure Titanium Surface: Sandblasting Size:(Diameter)64.5*(Height)75mm,Only 40 grams 1. Pure titanium,Ultralight and stronger than steel. 2. Never rust,anti-corrosion from acid and alkali.  3. High resistance to extreme low and high temperature.  4. Healthy,eco-friendly close to human body.  5. Titanium can inhibit the growth of bacteria  6. Light weight, healthy and easy to clean.  7. More convenient to carry and use outdoors.  Titanium is ultralight and super strong; it is eco-friendly, biocompatible and bacteria inhibitive; it is also extraordinarily hypoallergenic and exceptionally corrosion-resistant. Keith is an ISO 9001:2008 certified company (accredited by CNAS, member of IAF). It is also a GMC Certified Manufacturer (audited by TÜV Rheinland). Keith titanium product samples passed EU Food Grade (German LFGB) test and U.S. FDA test (both undertaken by SGS).