Safe Material: Our metal bombillas drinking straws are made of food-grade pure 304 stainless steel, non-toxic and tasteless, corrosion resistance, they are BPA free and safe comparing with plastic spoon straws, these filter tea spoons are used for drinking lemon water, tea or other drinks to avoid impurities. Innovative Design: The 3 in 1 filter spoon straws are double anti-slip ring and slightly flat straw mouth design, heat insulation, anti-scalding, smooth without hurting lips. The drop shaped end is designed to act as a pressurized extraction filter for your Yerba mate tea and loose leaf teas while the filter makes sipping tea healthier. Filter Residue Free: These stainless steel straw spoons are designed with double-sided and encrypted filter hole on the spoon surface, easy to clean the filter residue, filter more thoroughly, solve the trouble of inhaling filter residue. You can use it to drink brewed tea or freshly ground coffee, or other beverages. Ideal Alternative: Most single use straws are unhealthy and pollute the environment. Our reusable filter straw spoons are cost-effective and ideal alternative for anyone who regularly uses plastic straws, fragile glass straws, floppy silicone straws, soggy paper straws and bamboo straws which are easily get mildewed in rainy days. Easy to Clean: Our stainless steel filter straws spoons can be used repeatedly and washable, present a high glossy looking and are easy to clean the filter residue with the cleaning brush, cleaning is more convenient. Hand washing can keep the color brighter and also going in your dishwasher just fine.