Keith Ti3501 Titanium Nesting 4-Piece Double-Wall Mug Set
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.