I purchased this last year, but it has been stored unused at home after opening. It seems a bit too large for my household, and I don't think I'll be using it in the future, so I'm putting it up for sale. According to the retailer's website, it has insulation, and if you fill the cooler box with ice, it seems to take about 7 days for the ice to melt completely in an indoor environment of around 25 degrees Celsius. It also comes with a divider that doubles as a cutting board, a bottle rack, a bottle opener, and a drain, making it seem very user-friendly. The regular price is 32,780 yen, but it seems to be currently sold out. Although it is unused, there may be minor scratches due to storage, so please consider this before purchasing. Quoted from the following site: ■Measurements [Units (cm)] Outer dimensions (width x depth x height) / 55cm x 41cm x 47.6cm Inner dimensions (width x depth x height) / 40cm x 28cm x 35cm Capacity / 45QT (approx. 42.6L) ※The above sizes are the result of actually measuring the same product. ■Brand: PEACE PARK ■Item: Cooler Box ■Product Name: 45QT Cooler Box ■Country of Origin: China, etc. ■Material: Outer wall: Polyethylene Insulation: Polyurethane ■Weight: 11.2kg From PEACE PARK, the "45QT Cooler Box". A cooler box with a design that blends into camping, with attention to detail. The vertical design allows you to stand 2L PET bottles and wine bottles, making it easy to take them out. It comes with a removable drink holder, a divider that can also be used as a cutting board, and a basket that can be hooked on the opening.