Double-walled tumbler Product Details Capacity： 220ml/300ml/450ml/500ml/1000ml Material: High-quality double-walled stainless steel Handle：Easy grip handle Use: Suitable for both hot and cold beverages Features: Double-wall construction for insulation and durability Packaging: Each mug is individually packaged in a sturdy box to prevent damage during shipping https://www.cnwaterbottles.com/product/mug/