First, check to be sure your wooDsom knife bar lays flush against the metal surface you will be attaching it to.  If it wobbles, magnets may not adhere strongly enough for your particular knifeholder to be retrofit to the refrigerator.  If it fits nicely, purchase this retrofit service for the length of your knife holder (above, right). Then send it to wooDsom, along with confirmation of your order and we will install magnets on the backside so it can be attached to a steel surface.  Return shipping from wooDsom is included.
 
Ship to:
wooDsom
408 7th Street NE
Buffalo, MN 55313