This Catslife Press Unmounted Rubber Stamp Birthday Hat is so adorable. Use this hat on many of your other image stamps. This hat can also fit on the different Catslife Press bird stamps. This stamp measures 3/4 in. high x 5/8 in. wide at the bottom. Mount with EZ Mount or Tsukineko Tack N Peel and use on acrylic blocks, or mount them yourself onto a piece of wood.