ALM Manufacturing Replacement Trimmer Lines to fit most models of garden trimmers. Available in various lengths and thicknesses. Manufactured in the UK.This ALM Manufacturing SL016 Heavy-Duty Trimmer Line is suitable for use with all heavy-duty petrol trimmers (36-39cc). Specification: Diameter x Length: 3mm x 58mColour: RedAdditional Information:• Use: Petrol Trimmer Line• Line Diameter (mm): 3• Length (m): 58