Product name: Vietnamese Natural Bamboo Straws Type: Reusable Drinking Straws Application: home, restaurant, coffee shop, wedding, party... Length: 20cm or customized Outer diameter: 4.5-12mm Material: Natural bamboo Color: yellow color Logo: customized logo Certification: US FDA standard, EU standard Our bamboos straws is reusable drinking straws, it can be used for 6 months. After used once time, you use coconut brush to cleaning it and dry it. You can use machine (if you have) or put in in normal condition. Depend on climate in each country, the number of using times per day will be different. WHAT? Bamboo straws can use for many different type of drinks such as water, smoothies, wine, cocktail, bubble tea