From Crafter’s Companion, these super-size Rock-a-blocks come packaged in a set of two and will work perfectly with the large size Flower Fairies stamps, as well as all your other rubber or acrylic stamps.
They feature an innovative and unique stamp mounting system designed to make stamping easy and to ensure you get perfect results every time.
  The Rock-a-blocks are designed to work using a combination of the rocking action, coupled with the innovative depth gauge (the ‘runners’) to give even pressure to the application of ink to the surface to give you perfect stamped impressions every time.
  The Rock-a-blocks come packaged in a set of two including 7” x 4½” and 7” x 2”  Age 14+