Very simple transformation of an Estes 24 mm casing into an Estes 29 mm casing size. Reusable.
Adapts Estes 24 mm C11/D, Estes 24 mm E and Estes E30 series Composite engines to a 29 mm Estes casing size.
2 sets per package. Includes orange adapter tubes also.
"Copyright, Centuri Corp., used with permission"