You are looking at one brand new Tandy Leather Craftool 3D Horse and Rider Stamp.  The measurements are 7/8" x 7/8" (2.2 cm) .This item 88314-00 requires a interchagable snap-in handle 8200-01 which is also available in our stecksstore along with several other 2-D, 3-D and tooling stamps.  If you are interested in additional quantities or other items, please feel free to contact us.  Please feel free to message with any questions.  Thank you for looking.