I do not know the materials used in production, and I cannot guarantee an items durability. Antique porcelain, glass and other vintage items are fragile and may not be best suited for use. I recommend that you use the vintage items I sell for decorative purposes.The item "Royal Crown Derby Imari 2451 Set of 8 Demitasse Cups Saucers Scalloped" is in sale since Tuesday, August 13, 2019. This item is in the category "Pottery & Glass\Pottery & China\China & Dinnerware\Royal Crown Derby". The seller is "affordablechina" and is located in Bethesda, Maryland. This item can be shipped worldwide.