Estes Mini to Standard Engine Adapters (3)
Two simple steps transform a 13mm mini engine into a 18mm standard size. Insert a mini engine into the Estes engine adapter, and insert the adapter into a rocket. 3 adapters per pack. Reusable.
Includes: 3 - engine adapters and instructions.
Note: Rockets weighing up to 2 ounces that would normally fly on A8-3 engines can be flown on A10-3T engines.