The Pneu-Dart Practice RDDs are designed and pre-weighted to mimic an actual Pneu-Dart RDD filled with an injectable liquid. The Practice RDDs all contains a solid cannula / needle which is designed to be used multiple times when delivering your Practice RDD to a practice target.
Pneu-Dart recommends that dial-in your projector using practice RDDs to achieve accurate shot placement and ideal impact speeds prior to using the projector to deliver actual “full” RDDs with injectable liquids.
Flight Stabilizers (Type U):Â Flight stabilizers aid in the flight of the RDD so that the device does not flutter while in flight. They are also useful as RDDs work in other non Pneu-Dart projectors.