Simon Hurley create. Acrylic Blocks are designed with comfort in mind, featuring an 8mm wall to provide a handy grip. The lightly printed .5” grid allows for easy placement and precision when stamping unmounted clear stamps. The thicker printed lines located in the center provide a guide for precise centering. Available in two sizes, these blocks work well with both small sentiments and greetings as well as your favorite image stamps from Simon Hurley create. Small Acrylic Block measures 2” x 4.5” and Medium Acrylic Block measures 3.5” x 4.5”.