Perfect and straight stainless steel bottle. Free of BPA Phthalates, lead or other toxins, plastic and paints. Made from high quality, 18/8 food-grade stainless steel. The 1.75" mouth opening is easy to drink from and is large enough for ice cubes and bottle brushes (for thorough cleaning). Made from a single piece of stainless steel, the cap is strong and durable, with a handy steel bail. Beautifully finished with bamboo. stainless steel 18/8, cap stainless steel/bamboo, silicon seal neck Ø 4,4 cm RE: 502007 / 502008