This is a Margaret & Sophie PET bottle cover. For use with 500ml PET bottles. Stainless steel bottles also fit. Uses a washable aluminum sheet. The inside uses an aluminum sheet with a cooling and warming mesh. Approximately 19cm tall Approximately 11.5cm wide Approximately 5.5cm at the base. There may be some slight variations. There may be some imperfections in the stitching, such as uneven seams or slight misalignments. As this is a handmade item, it is difficult to make it as perfectly as a mass-produced product. If you are concerned about minor details or are looking for a perfect product, please consider purchasing a mass-produced item. I made this with care ^ ^ Thank you for your understanding of handmade items. I do not have any pets. Type: PET bottle cover