L-Style's Shell Lock system has taken over two years to develop and aims to bring the advantage of L-Style engineering to any foldable flight. The shell lock ensures a strong hold onto the shaft, while protecting the shaft from oncoming darts ("Robin Hood"). The key advantage of the shell lock lies in the grooves that rigidly sets foldable flights at perfect 90 degree angles. With Shell Lock, players can throw confidently with perfect aerodynamics and still use their favorite set of foldable flights.