I obtained this from a gachapon machine when it was released in 2017 and have kept it unopened in a dark place. There appears to be no discoloration, but since it's unopened, I haven't been able to check directly, so please be aware that there may be some deterioration of the rubber. I will wrap it in cushioning material and ship it via anonymous delivery. Please understand that this is stored by a private individual, so only those who can accept this are welcome to purchase. If you have any questions, please comment. #Deremas #Gachapon