Spider for Royal Dart
The plastic keeps the Spider dart segmente in the correct postion (similar to a spider web). Due to the exact fit of the segments they hold this and prevents falling out when removing the arrows. The segments are pressed by the impact of darts against the switch matrix and thus solve the contact. The rounded edges also arrowheads are protected.
Fits the following models:
HB8 and HB9 fit and Quadro