Crafted out of the finest all borosilicate glass, lead-free, no metal aftertaste, plastic free, and BPA free, As a safe and suitable alternative to plastic, these are safer for the environment. Eco-friendly packaging, no plastic. These straws are perfect for a wide variety of hot and cold drinks: smoothies, fruit juices, slushies, milkshakes, bubble tea, hot chocolate, cocktails and even cappuccinos or specialty coffee. Sip in style with these glass straws that are great for any occasion. The straw size is 10" x 10 mm, with outer diameter of 2/5 inch, these straws can easily fit through the lid slot of your mason jar, tervis tumbler, ello glass tumbler etc. Each straw is handmade in our studio by glass artists and inspected by hand for quality. Easy to clean and dishwasher safe. This glass straws set makes a great gift for those who enjoy drinking & care for the environment.