All, Butcher Boy MODEL(S)………. A-56, ALL Butcher Shop Industrial Commercial grade meat stomper. Solid Plastic Meat Stomper for all commercial grade grinders and stuffers. Heavy duty for frequent use. This stomper is industrial grade and made of solid nylon to pass all health department certifications. Works on commercial meat grinders by Biro, Hobart, Butcher Boy, LEM, Univex and most others. If your grinder has the protection cage on the meat pan then this is the stomper that you will need. 19.625″ Long 3.250″ Wide 15.375 Long to handle collar.