Pitch Patterns available:
    Plastic Spiral .2475, oval holes
    Plastic Spiral 4:1, round or "DD"
    Plastic Spiral 6mm, "DD"
    Plastic Spiral 5:1, round or "DD"
    Plastic Spiral 5mm, "DD"
    Plastic Spiral 3.5:1, round
    Plastic Spiral 2.5 to 1 "DD"
    WIRE 3:1, round or square
    WIRE 2:1, round or rectangular
    GBC 19+ holes
    Velo 11+ holes
    3 hole punch, 5/16" holes
    call for more patterns