• 【Lid Upgrade】 The lid is equipped with a specially designed thickened and widened sealing ring, which enhances the leak-proof performance and will no longer make your trip unpleasant due to leakage. The unique drinking spout is made for lips, allowing you to sip easily without letting hot drinks burn your soft lips.
• 【Safe Materials】 We attach great importance to the safety of drinking water. Both the inner and outer walls of our tumbler are made of 18/8 stainless steel, BPA free, to eliminate rust problems. Durable and reusable cups protect your health and protect our environment.
• 【Temperature Lock】 Bluwing coffee mug's double wall vacuum insulation technology keeps your drink in the ideal temperature range (hot for 12 hours, cold for 24 hours), vacuum technology keeps the outer wall in a "sweat-free" state, protecting your fingers don't get burned and stay dry.
• 【Powder Coating】 The powder coating gives the mug an attractive color, making it durable and colorfast, injecting more brightness into your life. The complimentary soft silicone mat provides solid support for the mug, and annoying noise and wear and tear are a thing of the past.
• 【Best Choice】Its design is slim and exquisite, the comfort of holding it is hard to ignore, perfect for women's small hands. This tumbler is a meaningful gift that will remind her of your care and blessings with every use.