This 350ml patented BPA free reusable coffee cup is a perfect product for eco coffee lovers, the beautiful sleek design is more suitable and healthier alternatives to conventional plastic, this reusable cup reduces vast amount of disposable coffee cups to protect environment. The modern elegant small design makes it portable and suitable for children, it has two sizes of drinking holes, small hole is designed for children's slow drinking, large hole can hold a straw to mind women's makeup. Insulated thermal double wall, keeps hands cool and drinks hot, steel wire in between two walls' joint enhances seal when temperature over 90 degree. Strong and durable, push splash proof silicone band lid access and leak tight. Turning lid top can cover both holes when not drinking, detachable lid parts easy for cleaning, lower part ridge surface for max comfort handling. It is dishwasher safe, but not microwave safe.