Reusable Premium Material: These straws are made of high borosilicate glass, which is environmentally friendly, dishwasher safe, and reusable. They offer high strength, stiffness, hardness, and good resistance to thermal shock. Enjoy your drinks without any metallic aftertaste or residual flavor from previous use. Glass straws provide a healthier and more eco-conscious choice for your daily beverage needs. Perfect for Drinks: These glass straws have an outer diameter of 0.4 inch, designed to fit through the lid slot of jars, glass tumblers, and similar drinkware. Suitable for use with jar cups, various tumblers, bar glasses, and other glassware. Ideal for a wide range of beverages. Convenient Cleaning: Reusable straws can withstand temperatures up to 150°C and as low as -21°C. They are heat resistant and safe to clean in the dishwasher. Each set includes cleaning brushes for easy maintenance. Shatter Resistant: Made from high borosilicate glass with enhanced durability, these straws are resistant to cracking and crushing. The edges are smoothly handcrafted to ensure safety and comfort, preventing mouth injuries. Suitable for smoothies, beverages, coffee, lemonades, shakes, milk tea, cocktails, hot chocolate, juices, wine, and other liquids. Color: Transparent Material: Glass Size: 8 x 200mm Package Contents: 12 x Reusable straws 4 x Cleaning brushes Note: Light and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3cm.