Estes F15-8 Model Rocket Engines, 2 Pack –29mm F-Class Motors with Starters & Plugs Each weighs 1 pound and

Each weighs 1 pound and measures 12" Long x 1/2" Deep x 1" High

000 Bull Pups were built and used until it was decommissioned in the mid 80s

Designed to demonstrate the principle of an electrochemical cell

The wheels prevent your appliance or machinery from making direct contact with the floor

Helps you get your watch repairs and maintenance done at home

Estes F15-8 Model Rocket Engines, 2 Pack –29mm F-Class Motors with Starters & Plugs Each weighs 1 pound andPLEASE NOTE: These are large (29mm diameter) engines that will only fit certain model rockets. Please refer to the instructions that came with your rocket (or the rocket's product description) to determine engine compatibility. Estes F15 8 engine pack includes 2 engines, 2 starters, and 4 starter plugs The F15 8 is a powerful engine that will send your rocket sky high! Recommended for use with the Star Orbiter, Majestic, or other compatible rocket