INCLUDES (2) 90, (2) 91, (2) 92,(2) 93, (2) 94, (2) 95, (2) 96, (2) 97, (2) 98, (2) 99, & (2) 100 size jets COMPATIBLE WITH gasoline carburetors such as Brawler: 4150, 4160 series Demon: 4150, 4160 series, FST: 4150, 4160, 4500 series, Holley: 2010, 2300, 4010, 4150, 4160, 4500 Series, and Quick Fuel: 4150, 4160, 4500 series CONVENIENTLY ORGANIZED in a pocket-sized 3" x 4-1/2" x 1-5/16" storage case BRASS JETS for durability and long life SPECIFICATIONS: 1/4 -32 thread Carburetor Standard Main Jet Kit with CaseFits Brawler, Demon, FST, Holley & Quick Fuel (Gas Carburetors)Sizes: 90-100 (1 Pair of Each Size)Includes Clear Plastic Storage case Includes (2) of Each Jet Size:90 91 92 93 94 95 96 97 98 99 100Fits these Gas Carburetors:Brawler: 4150, 4160 SeriesDemon: 4150, 4160 SeriesFST: 4150, 4160, 4500 SeriesHolley: 2010, 2300, 4010, 4150, 4160, 4500 SeriesQuick Fuel: 4150, 4160, 4500 SeriesCarburetors with a 1/4 in.-32UNF Thread Jet