Replaces Part Number: For Husqvarna 531031067, 53-103-10-67, 531 03 10-67, 5310310-67, 531-03-10-67 Compatible With: For Stihl Trimmer Head Models FS100, FS100RX, FS110, FS130, FS250, FS310, FS350, FS360, FS450, FS460, FS550, KM55, KM85, KM90, KM110, KM130, FS-KM Specifications: 4-1/16" Length, 0.475" Hole Diameter Package Includes: 12 x Poly-Cut Trimmer Blades Every Product from LEFITPA will enjoy 30 days Money-back and 18-Month Worry-free Warranty; If you have any questions, please feel free to contact us. LEFITPA 12 Pack Replacement B1ST75 Poly Cut Blade for Stihl FS40 FS44 FS45 FS55 FS80 FS85 FS90 FS100 FS100RX FS110 FS130 FS250 FS310 FS350 FS360 KM55 KM85 KM90 KM110 KM130 FS-KM Trimmer Head Models

Replaces OEM Part Numbers:
For Husqvarna 531031067, 53 103 10 67, 53-103-10-67, 531 03 10-67, 5310310-67, 531-03-10-67
For Stihl 41110071001, 4111-007-1001, 4111 007 1001, 41110071004, 4111-007-1004, 4111 007 1004
For Husky 531-01-77-15
For Oregon 55-460-1
For Stens 390-040, 390-039
For Rotary 7141
For Sunbelt B1ST75

Fits Models:
For Stihl Trimmer Head Models:
5-3, 6-3, 20-3, 41-3, FS36, FS40, FS44, FS45, FS46, FS55, FS75, FS80, FS83, FS85, FS90, FS100, FS100RX, FS110, FS130, FS250, FS310, FS350, FS360 (From 2011 On), FS450, FS460, FS550, KM55, KM85, KM90, KM110, KM130, FS-KM

Specifications:
Hole Diameter: 0.475"
Length: 4-1/16"

About us:
Every product from LEFITPA will enjoy 30 days Money-back and 18-Month Worry-free Warranty.
If you're not sure whether it fits your model, please email us-includes your Models and serial number.
Note - This is an aftermarket replacement Parts. Any brand name is used solely for the purpose of demonstrating compatibility.