Strictly selected high borosilicate glass, resistant to rapid temperature difference, put about 0 ? ice cubes pour boiling water, the cup is safe and sound. Wooden lid, wooden board with edible contact PP inside, leak-proof seal, inverted without leakage. Wooden straw, and natural wood take material, healthier and better to use. Silicone cover, good thermal insulation, not easy to hot hands, and non-slip, comfortable grip. Rounded cup mouth, polished, lip feel delicate, non-slip cup bottom design, the bottom of the cup is not easy to slip. The cup body is smooth, crystal clear, and always beautiful and clean. Colorful, choose as you wish, there is always one you like. Measuring 7.2*2.95 inches, this custom simple silicone sleeve bamboo lid glass 20oz. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization available: Print your logo or customize packaging and color schemes. Product Highlights: Portable, durable, practical for daily use.