You will truly love this collection of stamps by Paper Smooches. The Spectrum Clear Acrylic Stamp Set is made of clear photopolymer and will adhere to any acrylic block (sold separately). The package includes four main images, three sentiments, and seven supporting images. The approximate sizes of the stamps are: unicorn (2 1/4 x 2 1/2), sun (1 1/4 x 1 1/4), rainbow (2 x 1 1/2), and large cloud (2 x 1 1/4). These stamps come on a 4" x 5.75" storage sheet.