High QualityThe travel mug is made of stainless steel. It is durable, rust-resistant and long lasting, and would not damage with normal use Leakproof ; Well Sealed Lid The travel coffee mug features a BPA free, leakproof screw lid, along with a seal ring. It effectively prevents drinks from leakage or spilling for convenient portability and travel, ensures drinks won't leak if the thermal mug gets knocked over on a table or in a bag Keep Drinks Hot or Cold for HoursThe travel coffee cup adopts double walled vacuum insulation and interior seamless technology. It well protects against heat or cold transfer in maximum. When filled with hot water, the coffee mug will never get hot to touch! Considerate and Practical DesignThe travel cups wide mouth allows easy filling ice cubes ; drinks, and cleaning. The insulated mug is designed to tag along on any travel as its diameter just 70mm and fits in most car cup holders and backpack pockets Wonderful GiftPowder matte coated finish surface makes the coffee flask look elegant, more durable and easier to clean. You don't need to worry the thermal cups outer surface being easily scratched. Matt surface also offers a comfortable way to hold. It is a great gift for friends, family!