The default size of the lunch box that can be loaded is a lunch box with a height of 16cmx8cm within 10xm. (18x10x16cm is the appearance size, please do not refer to this size for purchase, because there is an insulation layer inside, the space that can be installed will be smaller than this size) Because there are many styles and sizes of bento boxes on the market, customization is supported. The price of customized size may fluctuate~ Another: customized size will not be refunded if there is no quality problem! ! Custom price: Under normal circumstances, if there is not much difference from the default size (16x8x10cm), the price will not change. If the size difference is relatively large, please inform the shopkeeper about the size of the lunch box. Regarding cleaning: the outer layer is not washable cotton cloth or canvas, and the inner aluminum foil insulation film can be wiped clean with a wet towel. The whole body can be washed by hand or mild machine washing. Please avoid violent machine washing to avoid damaging the insulation film. By default, there is an insulation layer inside the bento bag. If you do not need an insulation layer, please inform the owner.