- Packing list: Includes 3 natural bamboo drinking lids, 2 durable stainless steel straws, and 1 straw cleaning brush, all securely packaged in one carton. - Quality materials: The regular mouth drinking lids are crafted from 100% natural bamboo, finished with a protective oil coating to resist moisture and prevent rotting, ensuring longevity and reliability. - Versatile set: Designed for use with standard 304 stainless steel drinking straws, this set is perfect for both hot and cold beverages. The lid's mouth diameter of 0.26 inches accommodates bubble tea and other thicker drinks, while the included cleaning brush makes maintaining the straws easy and hassle-free. - Perfect fit: Each bamboo lid features a straw hole that fits standard Mason jars, complemented by a silicone gasket for a secure seal. Transform your Mason jar into a bubble tea cup, smoothie container, or convenient drinking bottle. - Practical applications: Ideal for enjoying bubble tea, smoothies, iced coffee, or any favorite drink. Perfect for picnics, outdoor gatherings, or daily hydration at home or the office. - Eco-friendly choice: Use this set to reduce single-use plastic waste, making a sustainable choice for your beverage needs while enjoying stylish and functional drinkware.