The high-quality stainless steel tumbler is made of stainless steel and is durable. The interior is electro-polished to ensure that your cup does not rust, and the exterior is coated with a color powder coating to make it very easy to grasp. The shape is tapered, so it is suitable for installation in a car cup holder. It is equipped with a splash-proof sliding cover and a reusable straw to help you keep it tidy. The wide opening is convenient for cleaning and quick filling. More importantly, our tumbler uses a sweat-proof design to ensure that it does not leave any stains and you will never burn yourself again! Measuring 17 oz, this custom 17oz stainless steel straw vacuum coffee cup. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: BPA-free, leak-proof, travel-friendly.