These borosilicate glass (Pyrex) straws are non-porous and flame-polished to have a smooth edge for safe drinking. The comfortable bent end provides the perfect sipping angle. Our straws are durable and shatterproof, heat and cold-resistant and will not float in your drinks. Dishwasher-safe, reusable and eco-friendly they make the perfect BPA-free gift for your health- and budget-conscious family and friends. Straws are recommended by dentists for those with sensitive teeth or dental work to avoid staining from tea, coffee and juices. Each set also comes with a long-handled nylon cleaning brush.