With thickened double-layer glass material, each mouthful is assured, and the cup body is transparent and clean.360 ? leakage prevention, and play does not spill, carry more assured, no fear of bumps. Large caliber mouth, easy to brew all kinds of drinks, easy to clean. Double-layer heat insulation and anti-scald design, using the weak thermal conductivity of the air, so that the temperature decreases from the inside to the outside of the cup to reach the appropriate temperature. Built-in food-grade silicone sealing ring, tight fit, shaking does not spill. Portable glass, suitable for a variety of scenarios, anytime, anywhere, drink when you want. Measuring 2.36*7.09 inches, this custom creative cartoon double layer penguin glass 9oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: Sleek design, durable build, easy to grip.