Stainless Steel Portable Vacuum Flask $ 8.93 Product information Style: with handle Liner material: 304 stainless steel Shell material: 304 stainless steel Insulation performance: 12-24 hours Material: 304 inside and outside Style: modern and simple Function: Portable Product quality level: excellent product Applicable people: general Applicable scene: home, outdoor Color: various colors Packing list Insulation cup x1