The straw is made of food-grade stainless steel (#304). Each comes with a cleaning brush and silicone tip/protector. It measures 1/4″ Dia. Modern and sleek design. Easy to carry. Perfect for you to enjoy your cold beverage, coffee, lemonade, cocktail, ice tea, cappuccino etc by these colorful drinking metal straws. Add your company logo or message to create an indispensable branded premium.