These blades are made from special high carbon steel. The hardened teeth are precision sharpened. These blades are designed for fast bone-in beef, pork, lamb, fish, or frozen meat cutting. All Magnate bandsaw blades are welded and fabricated in the USA. The coils/material of the bandsaw blades are USA brands. The picture depicts a general bandsaw blade and thus may look different from each particular item.Note: the image shows only one single blade. For packaging purposes, this blade is folded into a coiled position which is similar to a spring and may pop open when uncoiled. Wear leather gloves and eye/body protection while using extreme care when uncoiling the blade. Failure to exercise the proper care could result in serious bodily injury. See your bandsaw owner's manual for further safety instructions. Please refer to your owner's/operation manual to make sure the blade's length, width and thickness can fit your bandsaw machine. WARNING/ADVERTENCIA: CANCER AVOID INHALING WOOD DUSTCANCER EVITE INHALAR POLVO DE MADERAwww.p65warnings.ca.gov Please be aware that if applying this product for woodworking purposes may expose users to Wood Dust. Wood Dust is a chemical listed by the State of California as a known carcinogen. The following bandsaw model(s) use 148 inch ( 12 ft. 4 inch, 12' 4" ) meat-cutting bandsaw blades: Superior Jones Senior