Made of plastic or acrylic. Set of 2 colors: blue and cream yellow. The blue one has some minor stains on the surface, but they are unused and have been carefully stored. I bought them decades ago at a local general store-like pharmacy. Cream: 3.5cm x 1.9cm Blue: 4cm x 1.9cm The inner metal part of both is 2.5cm wide x about 3mm thick. #Hairpin #Barrette #Deadstock #ShowaRetro #VintageHairAccessories