Includes: (1) Loop of Professional Non Safety, Non Ansi, Non UL Rated Saw Chain, (2) Premium Chainsaw Files Specifically Designed for Sharpening This Saw Chain and (1) Universal File Handle - Fits Most 8" Round and 6" Flat Files. Fits a 20" Bar: Husqvarna Model: 55, 61, 65, 66, 77, 181, 185, 257, 260, 261, 266, 272, 280, 281, 285, 288XP, 357XP, 359, 362XP, 365, 372XP, 380, 385, 390, 395, 455, 455E, 460, 570, 575, 576, 2100, 3120XP. Stihl Models 024, 026, 028, 030, 032, 034, 036, 038, 040, 041, 042, 044, 045, 046, 048, 064, 066.