ANDIS PROFESSIONAL PRO OUTLINER 2 TRIMMER REPLACEMENT BLADE ALSO FITS T-OUTLINER TRIMMER Blade Installation instructions are available on the back Made In USA Item No: 04604 395300 Blade Installation Instructions: *Carefully Align the slot in the upper smaller blade over the white nylon driver ball of the trimmer's tension spring. *While holding the blade set in place centered and squared to the trimmer body, Carefully tighten the two screws.