【High-quality material】 The straw is made of high-quality silver 18/8 food-grade stainless steel. With the wall thickness of about 1MM, the straw is quite strong and durable, featuring appropriate weight and being free of metallic smell..【High-quality surface】 Being different with those cheap straws whose surface has not been fully treated, the straw is processed with manual polishing technique, which guarantees the smooth and pure surface. Therefore, the smooth round end of the straw would not hurt your mouth even if the silicone tip is not available. Besides, in comparison with other metal straws, it easier to open/close the silicone tip..【High-quality silicone tip】 It is comfortable to keep the soft silicone tip in the mouth, which ensures the pleasant drinking experience. The 7-inch and 8.5-inch straws are equipped with 4 silicone tips of different colors respectively, so that every member of the family could pick a special color. Being made of food-grade material and dishwasher safe, the silicone tip is free of BPA, plastic and toxic..【Suitable for cups of different sizes】 The straw of different sizes and diameters could match with different cups. 7-inch, 8.5-inch and 9.5-inch straight and curved straws are applicable for cups or bottles with the capacity of 16, 20, 24,and 30ounces. The super-wide straws with diameters of 0.25, 0.3 and 0.5 inches are perfect choices for drinking cold drinks, coffee, cocktails, soda water, smoothies, milkshakes or other liquid drinks..【Easy to carry and clean】 With cleaning brushes of two different widths, it is easy to clean the interior of stainless-steel straw and silicone tip. Being dishwasher safe, the cleaning can be easily done. The kit includes a traveling case, which enables you to carry some reusable straws.