Our Postmarks mini cling stamps are perfect for creating cards, gift tags, decorations and more. Designs include postage stamps and other shipping symbols. 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: 2.25" x 2.25", set of 4 stamps.