Super Powershot Precision SS™ Nitrous Flare Jet Package Of 6 Includes 1 Each Of Sizes 47, 53, 55, 61, 63, & 71 . NOS worked with experts in precision hole drilling to develop a proprietary manufacturing process for our new Precision SS™ jets during years of exhaustive research and development. The result significantly raises the bar in terms of jet accuracy and precision and renders all the competition's jets obsolete. NOS Stainless Steel Flare Jet Package Of 6 Includes 1 Each Of Sizes 47, 53, 55, 61, 63, & 71.