PME round plunger cutters, S/M/L set of 3 (MR151). ABS thermoplastic. Official sizes: small 6 mm (0.2"), medium 10 mm (0.4"), large 13 mm (0.5"). Official materials: sugar paste (rolled fondant), petal paste (gum paste), marzipan, and craft clays. Specs from PME's Shapes Plunger Cutters - Round page.
Three miniature round plungers. Dots and centres in paste.