Water Bottle 500ml Mug Bottle Screw Stainless Steel Cold/Hot Insulation Flower Color SMF-S500 Pink IRIS OHYAMA Keeps delicious temperatures for 6 hours. The vacuum insulation layer between the outer and inner bottles maintains the temperature, making it difficult for the internal temperature to escape and for external heat to transfer inside. Because it's an everyday item, cleaning is easy. Fewer parts make it easy to wash. It can be washed thoroughly and is hygienic. Simple design with gentle, muted colors. A design that can be used anywhere, whether you're out and about or in the office. Tumbler Stainless steel mug bottle Water bottle