Fits most Lawnboy, Ryobi, Snapper, Troy-Bilt & Yard Machines trimmers. Fits Ryobi models 130R, 135R electric trimmers. 700R, 710R, 720R, 740R, 750R, 760R, 765R, 766R, 770R, 920R, 970R, CS720R & SS720R; Troy-Bilt models TB75SS & TB475SS; Yard Machine models Y28 & 2800M. Fits Hyper Tough H 2500 (41ADZ01C735). Poly bagged.
Replaces Lawnboy #(s) 153066, 682069; MTD #(s) 791-153066, 791-153066B; Ryobi #(s) 153066, 153066R; Snapper/Kees #(s) 4-2076, 6-4376, 68049, 7068049.
•OD: 1-3/4"
•Thread Size: 5/16"-18