Abstract: A one-piece molded plastic cuttlebone holder having two pairs of substantially parallel fingers with spaces therebetween for receiving wires of a cage, and third fingers extending laterally outwardly from one pair of fingers to define a cuttlebone receiving socket. Certain fingers of the spaced pairs of fingers are resilient so that they will provide a clamping force on the cage wires which are located between the pairs of fingers. The socket-forming fingers are mounted relative to the spaced pairs of fingers with a movable connection to accommodate cuttlebones of different sizes.