5 Darts per Package Pneu-Dart Type ‘P’ RDD Devices (color coded in yellow) are for use with our CO2/Air projectors and Blo-Jector. These RDD Devices are appropriate for use on small or large animals. With the advent of our patented Slo-Inject® technology Pneu-Dart has fortified its plastic RDD Device body by transitioning over to an opaque polycarbonate resin. Equipped with a color-coded polypropylene Type ‘P’ tail, the Slo-Inject® PolyCarb RDD Device possesses enhanced mechanical and superior chemical resistance properties.