This is an Archer 20" very high quality laminated sprocket nose guide bar that works on Stihl models 024, 026, 028, 028S, 029, 030, 031, 034, 036, 038, 039, MS280, MS290, MS360 plus many more. The guide bar is .325 pitch, .050 gauge and uses a 81 drive link chain.
Archer Guide Bars, Archer Chainsaw Chain and Archer Accessories are sold world wide and are known for quality products!