Medium size spring-loaded stamp handle for use with 81XX series 13mm(1/2"), 19mm(3/4"), 26mm(1") alphabet, and pattern stamps, as well as 2D and 3D stamps. It fits in stamps that have have an approximate hole of 3/8 inch to insert the stamp handle. The ball springs helps keep the leather craft stamp from falling off the stamp handle which makes it easier to line up your stamp and lift it off your leather project.