EXCELLENTTwo cast iron spikes rollers. No pounding or hammering required. Punctures for better marinade and sauce penetration, brings out the flavor of your favorite meatsSELECTED MATERIAL aluminum housing for durability, easy disassembly for cleaning and maintenanceWONDERFUL it handles meat pieces 1/2 inch thick and 4 3/4 Inch thick inches long, Table-clamp style quickly attaches to any table or countertop up to 1 1/2 Inch thickPROFESSIONAL DESIGNCompact design for easy storage. Clampon design will attach to your table or counter topGOOD TRYThe meat tenderizer machine best kitchen tools for tenderizing, marinade, bbq and flavor maximizer. Help meat better absorb spices, enhance meat texture and taste, and make delicious dishes easier Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.