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 SL004 Medium-Duty Trimmer Line is suitable for use with all makes of medium-duty petrol trimmers (25-35cc). Specification: Diameter x Length: 2.4mm x 20mColour: YellowAdditional Information:• Use: Petrol Trimmer Line• Line Diameter (mm): 2.4• Length (m): 20