"100% brand new and high quality Natural process with any meat type tenderizing. Without noise and will not splash when deal with the meat. Marinate faster and more effectively. Reduce your cooking time by up to 40% by creating ""heat channels"". Cut down your picking time by up to 80%. Lessen your barbecue and grill time by up to 50%. Easy to clean， protective cover included. Perfect result - succulent and tender. Suit for chicken chop， pork chop， lamp chop， beef steak ect. Material: ABS +Stainless Steel KnivesColor: White/Black Dimension:5 cmx 5.1 cmx 19.4 cm /1.9"" x 2"" x 7.6""Quantities of knives: 21 knives " Package include: 1 pc x Professional Meat Tenderizer Notice: 1.Please allow 1-3mm error due to manual measurement. 2.The colors may have different as the difference display，pls understand.