This Estella carriage pusher handle is a direct replacement for the one that came standard on your Estella SL series meat slicer. It is compatible with SLM12, SLM13, SLA13, and SLA13S meat slicers. This handle allows you to manually slide meat over the blade for slicing. If your original carriage pusher handle is worn out or broken, replace it promptly to continue proper operation of your meat slicer.