Relief printing is based on a reductive process - carve the non-image away from a flat, level surface and ink the remaining top surface with a roller or brayer in order to print the image. Set contains 4 carving blades, a quick-connect ABS handle, 11-pocket tool roll, as well as a custom strop and polishing compound. Profiles included: SK306 #6 x 5/16"; SK309 #11 x 1/8"; SK803 45 deg. x 1mm; and SK307 70 deg. x 1/4". Hang packaged.