MINI & PORTABLE DESIGN: our telescoping Metal straws comes in a aluminum alloy case specifically designed to keep it handy and clean. The travel case is lightweight in size for you to easily throw in your purse, pocket, cosmetic bag, key chain etc. MINI & PORTABLE DESIGN: our telescoping Metal straws comes in a aluminum alloy case specifically designed to keep it handy and clean. The travel case is lightweight in size for you to easily throw in your purse, pocket, cosmetic bag, key chain etc. ECO-FRIENDLY MATERIAL- reusable metal straw made of food-grade 304 stainless steel that can stand against scratch, rust and crash. Reusable and environmental friendly. EASY TO CLEAN: Dishwasher safe and every metal straw come with 1 collapsible stainless steel cleaning brush which is long enough to wash the whole straw, it does not leave any ordor flavor after cleaning. TELESCOPIC DESIGN: The Stainless Steel Metal Straw is telescopic, which is perfectly compatible with 12-40oz cups. Tight enough to avoid collapsing. Hassle-free Customer Service We provide 7*24H customer service. If there's any question with our collapsible drinking straws, please feel free to contact us without hesitation, thanks!