Knotters Tool II (Black) by Jig Pro Shop ~ Marlin Spike for Paracord, Leather, & Other Cords A New Generation of Knotters Tool! NEW AND IMPROVED DESIGN! Made from billet aircraft aluminum with durable high luster clear anodized finish! Perfect size at approximately 6 1/4" long X 9/16" in diameter Also available in kits with (3) different size stitching needles.