This 21OZ-Stainless Steel WateBottlesnterior consists of 316 stainless steel, material stability and better insulation performance, effectively prevent a variety of limescale tea scale breeding, the lid can be used as a small mug, very convenient, spiral cup mouth, non-slip cup bottom, sealed lid, built-in tea drain, tea and water separation, Fen sister type structure, cleaning without dead ends. This custom 21oz-stainless steel water bottle. 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.