These red clad bathers are sold as a trio as they definitely belong together! They are ceramic (possibly porcelain), and in great condition.
Approximate sizes;
Small: Height 5cm x Width 4cm x Depth 3.5cm
Medium: Height 5cm x Width 11.5cm x Depth 3.5cm
Large: Height 8.5cm x Width 10cm x Depth 3.5cm