New, Unused (2024 Model) I purchased two as spares, so I am selling a new, unopened one. ● This is a pet bottle cooler that fits 500ml to 600ml plastic bottles. ※ Depending on the shape and size of the plastic bottle, it may not be usable, or the cover may fit differently. ● The vacuum-insulated structure prevents condensation and keeps the temperature even outdoors. ● It comes with two types of straps for easy carrying when you go out. ■Specifications■ Size: ＜Body＞ Approx. diameter 11 x height 17cm (including handle) ＜Short strap＞ Approx. length 7cm ＜Long strap＞ Approx. length 66-143cm (excluding fasteners) Not for use: Dishwasher, dryer, microwave, oven, direct fire, open flame Heat retention: 53°C or higher (1 hour) (※ Heat retention refers to the temperature of the water after 1 hour when a 500ml plastic bottle filled with hot water is placed inside the body at room temperature of 20°C ± 2°C, the cover is closed, and the water temperature is 60°C ± 1°C.) Cold retention: 6°C or lower (1 hour) (※ Cold retention refers to the temperature of the water after 1 hour when a 500ml plastic bottle filled with cold water is placed inside the body at room temperature of 20°C ± 2°C, the cover is closed, and the water temperature is 4°C ± 1°C.)