The Brass Racer Iambic is  unique in that there are no springs in the design. Tension on the paddle is infinitely adjustable through the use of magnets.

  The Brass Racer Iambic is a convenient, space saving portable keyer paddle unit crafted from solid brass with a lacquer coated brushed finish mounted on a hardwood base.  Weight 2.5 lbs. Cord included.   $149.95