Estes 1693 E12-6 Model Rocket Engines, 2 Count – 24mm, with Starters & Plugs Also looks great as a

Also looks great as a decoration when stored on your shelf or bar when not in use

Comes with over 40 accessories: (1) additional collet

Model 1652 has a dual digital LED display

and the external ear is represented by the auricle and auditory canal

Written and designed to fulfill educational standards for life Science and earth science

Estes 1693 E12-6 Model Rocket Engines, 2 Count – 24mm, with Starters & Plugs Also looks great as aThe Estes E12 6 is a high thrust engine with a 6 second delay, designed for heavier rockets up to 14 oz. It offers powerful launches and smooth recovery deployment for larger models. This 2 pack includes 2 engines, 2 igniters, and 4 plugsperfect for experienced rocketeers seeking altitude, reliability, and performance in mid to large sized rocket flights. Estes E12 6 engine pack includes: 2 E12 6 Engines 2 Starters 4 Starter Plugs Engine