The caltrop is a rudimentary, yet effective, defensive weapon, always with a spike aimed upwards to stop perpetrators and automobiles alike. It serves as the inspiration for this sleek bookend. Made from carbon steel with either nickel plating or black electroplating, its two bent rods are joined by a single bolt to complete its elegant form. Rubber feet on the bottom prevent sliding, allowing it to support even the heftiest tomes. Sold as a set of two.