The Dart Set from Schleich DINOSAURS is an accessory set for the tranquilizer cannon in the Large Dino Research Station (item no.: 41462)";"The Dart Set from Schleich DINOSAURS contains five extremely effective tranquilizer darts that can even incapacitate a T-Rex within a second.  The tranquilizer darts put the dinosaurs into a deep sleep.
 
 Dimensions 4.921X0.591X6.299 Inch (W X D X H)