Kero Kero Keroppi Mini Trays - Set of 3 These are plastic trays. I unearthed them while cleaning up my parents' kitchen. I believe they are from 1990. Each tray has some slight discoloration around the edges. They have been stored away for a long time, so overall they are in good condition without any yellowing. They will be sent via standard mail with simple packaging, but I may change to Yu-Yu Mercari delivery depending on the weight after packaging. Please check the photos and the above information, and please purchase only if you understand and agree to everything.