Description: Durable, non-toxic and Eco-friendly Could put it into the microwave for sterilization Usage: Milk, Ice Cream, Smoothie, Coffee, Lemon Juice, Rice porridge ,Cereal etc. Protect Teeth from Cavities and Stains Temperature resistance: Less than 520 ? Tube mouth shape: Round Material: High borosilicate glass Total length: Approx. 20cm/ 7.87inch Outer diameter: Approx. 0.8cm Tube thickness: Approx. 0.2cm Color: Clear Package Includes: 4 x Glass Drinking Straw 1 x Cleaning Brush Note: Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different