ZIP STOP

This was created to help stop zippers from destroying your cardboard body tube of your model rocket during parachute launch/recovery. This will help distribute the load of the shock cord over a wider area along the edge of the body tube. Weave the cord through the holes in the zip stop.position it about halfway along the edge (centered) of the body tube when the shock cord is tight.Add a knot before and after the zipstop to prevent it sliding from parachute ejection.add parachute and recovery system as usual.