Come and see our amazing products. The stainless steel straw is environmentally friendly. Stainless Steel Straws are made of food-grade 18/8,304 stainless steel,baby safety. PLEASE NOTE: The cleaning brushes are storaged in the straws. Please check the cleaning brushes carefully! Straws are collapisible and portable, which s compatible with most 20 oz. and 30 oz. tumblers. Stainless Steel Straws comes with aluminum alloy cases . The Straws can be placed in a key-ring case after shrinking, light and small, fits in your pocket, purse, backpack, or briefcase. You can also hook the straw case on your belt loop. With the extra long telescopic scrub brush, you can clean the inside of the reusable straws from top to bottom easily. Don't worry about the coffee or other drinks in the straw can't be cleaned. Pls confirm with us about the packing info, stock color and exact production time before placing your order.