Estes 12 Pack 12 Inch Printed Parachutes for Model Rockets (2264PK12)Pack of 12 Replacement parachutes for use with Estes model rocket kits 12" (30. 5cm) diameter when open Preassembled for immediate use Pack of 12. These 12 in. (30. 5 cm) parachutes are preassembled and ready to use on model rockets that require a 12 in. parachute. The shroud lines come attached, and it simply attaches to the nose cone by sliding the shroud lines through the anchor then looping the parachute through the shroud lines. The lightweight