Stainless steel, PS plastic;This Eco Responsible product includes reusable drinking straw with cleaning brush in case; Telescopic 304 Stainless Steel straw with Silicone spout is compact for using on-the-go instead of single-use, disposable plastic straws; Case includes Silicone clip-on lid; Brush comes inserted at Silicone spout end of folded straw and is made of Stainless Steel with Nylon yarn; Straw measures approx 8.25"l x .03"dia at full length (3.15"l folded); Brush measures approx 3.5"l x .025"dia; Hand-wash only Wash before using; Twist-pull action opening; Product Size: 6" l x 0.6" dia.;