Kaweco Replacement Steel Nib 060. Suitable for AL Sport, AC Sport, Art Sport, Sport Luxe, Liliput, Student, Allrounder, Aluminium Special and Dia pens. DOES NOT work with Classic Sport or Ice Sport. Available in nib sizes Extra-Fine, Fine, and Medium. This package contains one chrome medium replacement nib. TO REMOVE grip the nib top and bottom with finger tips and unscrew from the barrel. TO INSERT grip the new nib as before and screw in until finger tight. Do not grip the nib via the sides or apply uneven pressure or you will distort the nib or detach it from its feed.