This ALM PD451 Spool and Line and Cover is a high-quality replacement part designed to fit a variety of Challenge, JCB, and other strimmer/trimmer models. It is suitable for use on models including Challenge SRT350B, Challenge Xtreme M1G-ZP-250 and SRT350B, Cotech GTC350B and MOB-LR06-230/C, Einhell AT-18, JCB LT24300, Nutool NTGG250 and NTGG400, Powerbase 220W, 250W, 350W, DCSRT18v Cordless, LRT250B, M1GZP250, M1G-ZP-250, SRT350B, Powerforce CGT250B1, Sovereign SGT18-2 and SLT18-2, Tesco CLGT012011 18v, and Wolf Campus 250 GT, Campus 250 RT, Campus 350 RT. The spool has a line width of 1.3mm and includes 2 x 3.5m of line. This product is quality-controlled to the highest standard. All items will be shipped and delivered by Evri, DX, DHL, or Royal Mail, with the service used dependent on location, weight, size, value of contents, and carrier restrictions.