Commonly used for packing in color, filling large areas and shading. The needles are configured in straight liner but every other needle is bent up slightly to cover more surface area. Configuration is slightly loose than Double Stack Magnums. Our pre-made single stack magnum tattoo needles are made using 316L stainless steel, on the bar, pre-sterilized with EO Gas, individually blister-packaged and ready to use. Each tattoo needle is stamped with sterilization expiration date. All the Single Stack Magnum needles are #12 needles. We offer the following sizes: 5M1, 7M1, 9M1, 11M1, 13M1, 15M1, 17M1 19M1, 23M1, 25M1, 29M1, 35M1 and 39M1.