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Relationshipware StratoFins Screw-on Water Rocket Fins + Parachute Kit
StratoFins will guide your rocket to lofty heights with straight flights instead of tumbling through the air. StratoFins are made of durable plastic and screw-on to a 2 liter soda bottle or smaller. These fins are compatible with 95% of all available launchers either homemade or commercially available in the marketplace including those employing a rubber stopper (4M), an expanding tube (AntiGravity), nozzle (Quest), O-ring (Aquapod), or cable ties (H2O Thruster) because it replicates the threaded portion of the bottle beyond the fins. StratoFins requires no tools or glue for assembly. The StratoFins kit includes 1 attachment ring and

Price is $
Price: $28