Estes 1601 B4-2 Model Rocket Engine Pack – 3 Engines with Starters & Plugs Bring the magic of the

Bring the magic of the holiday season into full view with this Flashing Christmas Tree kit

1kHz resolution

crescent cutout to easily lift the lid

-Tensile Strength (2): 150 lb/in

Estes 1601 B4-2 Model Rocket Engine Pack – 3 Engines with Starters & Plugs Bring the magic of thePLEASE 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. Estes B4 2 engine pack includes 3 engines, 4 starters, and 4 starter plugs The B4 2 is a single stage engine designed for model rocket flights weighing less than 4 ounces, including the engine Recommended for use with the Interceptor, Der Red Max, Chiller, Big Bertha, or