Estes 1606PK3 B6-4 Model Rocket Engines, 3 Packs – 9 Engines Total with Starters & Plugs they'll explore the science behind

they'll explore the science behind cheesemaking and observe the accompanying chemical and microbiological changes and the resulting physical changes

Numerous study project and experiments may be conducted with Orbiters to expand interest and increase knowledge of the subject

Product Dimensions (L x W x H): 351 x 244 x 185 MM

at frequency rate Narrow Hi Pulse TTL: >2

Includes tip cleaning sponge

Estes 1606PK3 B6-4 Model Rocket Engines, 3 Packs – 9 Engines Total with Starters & Plugs they'll explore the science behindPLEASE NOTE: These are 18mm diameter engines. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. 3 Packs of Estes B6 4 engines total of 9 engines (each pack includes 3 engines, 4 starters, and 4 starter plugs) The B6 4 is a single stage engine that delivers high altitude flights Recommended for use with the Rascal & HiJinks, Hi Flier, AstroCam, Tandem X, or other