It made by stainless steel, We need wash more time, use Liquor and Spirits wash this flask.TOP GRADE MATERIALS: These flasks by are made out of premium quality stainless steel, ensuring that your experience will remain the greatest year after year. Non toxic, anti-corrosion and anti-rust product.A grip-friendly matte black flask of 8oz, a funnel for easy use.ELEGANT VERSATILE - The 8 oz flask brings and stores more your favorite beverage. Idea stainless steel flask for all outdoor activities, like Fishing, Camping, Boating, Hunting, Hiking, Tailgating and much more.UNISEX AND CLASSY DESIGN: Our engraved stainless steel matte flasks fit as good in a mans pocket as in the bag of an elegant woman 100% LEAKPROOF - Every whiskey flask with thick stainless steel lid, air-pressured, welded and quality controlled. The cap seals tightly to make sure no vodka, whiskey, bourbon or other favorite beverage will leak out and get wasted.Warm tips for first use and conservation instructions:1. Rinse the inside with clean, soapy water before filling the flask for the first time.2. Always empty the flask after use, no severe dropping, no high heat, and no acid liquid for long term. and rinse thoroughly before refilling.3. Do not keep alcohol in the flask longer than a period of 3 days, and to clean and dry thoroughly when not used.size:12.70 x 12.70 x 12.70 cmMaterial:Stainless steelcolour:blackPackage Contents:1 * Matte black 8oz stainless steel wine pot1 * funnelOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.