These are Husqvarna's Barrier Bar Bolts To The Loop Handle For Grass And Brush Blade Use. This Kit Contains Everything Shown, Including Instructions, Barrier Bar, Shoulder Strap And Suspension Eyelet, Blade Locknut, Support Flange, 255-4 Grass Blade, support cup, combination guard, and socket wrench. Not to be used with Saw Blades! Fits 322L, 323L, 325Lx and 326Lx.