FOOD-GRADE & BPA FREE MATERIAL - Distinguish from disposable straws, we use reusable straws many times every day. In order to guarantee safe drinking, do our best to use healthy and non-toxic food grade materials, please feel free to use them in hot or cold beverage.BEST SIZE FOR BOBA & SMOOTHIES - 8 pcs multi-colors straws + 2 cleaning brushes + straws case. 10.5" long and 0.4 Inner Diameter / 0.47 Outside Diameter. Extra wide mouth opening straws are the best ideal size for fat boba/bubble tea (tapioca pearls, boba pearls), frozen smoothies, thick milkshakes, jelly, jumbo drinks and more homemade thick drinksTHICK PLASTIC & DISHWASHER SAFE - Besides food-grade material, these smoothie straws are made of thick bpa-free plastic. Dishwasher safe and hand washing efficiently with 2 cleaning brushesEASY TO STORE AND CARRY WITH CASE - When you are at home, you can clean the straws and put them in the bag to prevent dust. When you go out, the bag is a good assistant for travel. The case is very cute and ideal size: 11" long