The ZN -QRP516 is built on a 3/4" x 2 1/4" w x 2 1/4"d base and weighs approximately 1 pound 4 ounces. It is more suitable for an operator who has a light touch. It incorporates all the same standard features of the other iambic paddles on a smaller base. OTO for this paddle is 5/16".
Photos 1 and 2 show the ZN-QRP516 in yellow blaze with blue posts and blue powder coated alumimum fingerpieces. Photo 3 shows the ZN-QRP516 in black.