Check the listing for details. Stainless Steel Barry King - #3 Loop Shell Geometric Stamp (Leather Tool). Condition: New. Listed at 59.95 USD. This is a #3 Loop Shell Geometric Stamp. It is a great stamp for creating an interesting geometric design and it produces a great pattern. The impression of this stamp measures 7/16" in width and 3/8" in height. If you want to make your work have a little different look, this would be a great stamp to add to your collection. Barry King Tools have gained a reputation for making quality tools for the serious leather craftsman. Barry is a master leather stamper, so he knows how a tool should be made and you can see that in each of his tools. Using only stainless steel in the making of these tools, you will see the precision grinding in every impression you make. If you have been wanting to take your leather carving to the next level, investing in stamps made by Barry King is a great first step.