Come and see our amazing products.The folding straw is made of high quality stainless steel, clean and compact. This stainless steel straw is made up of two parts, the out tube is made of food-grade 304 stainless steel and the inner tube is made of medical grade silicone. It's collapsible to be folded into 4 pieces and put into a ABS case. The stainless steel straws are Eco-friendly, environmentally responsible, and sustainable as they are reusable and dishwasher safe. Pls confirm further with us if any query about packing info, inventory status and time schedule.