Inkadinkado's Russian Doll mini cling stamps revive warm holiday memories when you use them to create your cards, gift tags and more this season. Mix and match with other Christmas mini clings for more design options. Cling stamps feature the best of both worlds: the quality impression of red rubber stamps with the convenience and precision of clear stamps. Clings utilize a clear acrylic mounting block (sold separately) with no adhesive needed. Stamp sheet size: 2.5" x 2.5", set of four stamps.