Compostable Bendy / Flex Straws – 7.75 inch – Assorted Colors Approximate Outside Diameter: 5.25mm These colored flex straws are made entirely from PLA (Corn Plastic) and are compostable in a commercial compost facility. Available in single case size of 7200 straws. Each box contains a mix of Blue, Yellow, Green, and Red Straws. Features: Designed for Cold Drinks Only Made from 100% renewable resources Meet ASTM standards for compostability. Made with a plant-based plastic Heat Tolerance: 140 (F) Store in a cool place away from direct sunlight PLA products are compostable in commercial compost facilities, but unfortunately not in your home compost.