Estes 1522 C11-3 Model Rocket Engine Pack – 2 Engines with Starters & Plugs A handle is forged on

A handle is forged on the end of the file for secure gripping

Maximum input of 20MHz

Regular use will prolong the life time of the tips

If you have any doubt

Recommended for use with the Tazz

Estes 1522 C11-3 Model Rocket Engine Pack – 2 Engines with Starters & Plugs A handle is forged onPLEASE NOTE: These are large (24mm 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 C11 3 engine pack includes 2 engines, 2 starters and 4 starter plugs The C11 3 is a single stage engine designed for model rockets with a maximum lift weight of less than 6 ounces. Recommended for use with the Super Mars