Also known as Surveyor's Arrows or Marking Pins. "Chicago" chaining pins are made of #/16" spring steel, heat treated and hard enough for scribing into concrete and metal. These 14" pins, powder painted red and white (alternating each inch), come in sets of 11 per box. Meets military specifications. Shown with leather quiver - sold separately below. Chaining Pins 04-501$19.95 Quiver for Marking PinsGenuine lether "Chicago" quivers are shaped for convenient carrying when strapped around the waist. 04-506$16.95 Chaining Pin Carrying Ring Chaining Pin Carrying Ring 04-511$10.95 Need more information? Please feel free to contact us at 1-800-592-6940 - Ask for Extension 547 or Internet Sales.