Otstar Boba straws with brush cleaner are made of high quality stainless steel materials,they are rustproof,reusable,biodegradable and food-grade.They are also cost-effective and ideal alternatives to single use plastic straws,fragile glass straws,floppy silicone straws,soggy paper straws and bamboo straws.With the silicone tips we provide you'll certainly have your enjoyment of drinking. Love your new straws and love your Smoothies,Milk shakes,Cocktail ,Bubble tea,Slushies,Juice,Frappe，blended soups,yogurts,mojitos as before. Box Contain(ECO FRIENDLY PACKAGING): Bubble Tea Metal Straw X 6, Straw Tips X 6, Straw Cleaner X 2, storage case X 1. Large Straw Size: 215mm in length,10mm in inner diameter,12mm in outer diameter.(Larger Than Usual for Bubble Tea.)