Made of High quality food grade 304 stainless steel on inside wall and 201 stainless steel on outside wall, scratching resistance.Capacity: 1000ml/32oz. Double-wall insulated, keeps beverage hot for up to 6 hours or cold for up to 12 hours.It keep hot drink hot in winter and keep cold drink cold in summer.If you have new style or design for cups, we can coopearte also, welcome your calling or email. Measuring 3.58 * 8.66 inches, this custom 32oz large capacity insulated bottle stainless steel. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: BPA-free, leak-proof, travel-friendly.