These are handicrafts I bought in India 55 years ago, when there were hardly any tourists from Japan. Since they are old, the workmanship is very detailed. They are made of jade, mother-of-pearl, and metal. Oval: Length 4.5cm, Height 2.2cm Teardrop: Length 3.8cm, Height 1.9cm Round: Diameter 2.5cm, Height 2.3cm