NanoNine TUF STEEL is made of 304 food grade stainless steel material. Highest quality of steel. Product Dimension : 7 X 7 X 27 cms, Capacity : 750 ml, Weight : 170 gms, Material : Stainless Steel, Colour : Blue. Package Contents - 1 Pc Tuf Steel Bottle. RUST PROOF & HYGENIC : The use of high quality stainless steel makes it rust proof & hygenic ONE HAND USE : Specially designed Sipper Cap makes it convients to use. Sizzle on your run with style in one hand. FRIDGE BOTTLE : Single wall so can use it as a fridge bottle. Leakproof and Unbreakable.