Estes 1672 Blast-Off Model Rocket Engine Assortment Bulk Pack – 24 Engines 6 of each: A8-3, B6-4, C6-3 & C6-5 with Starters, Plugs & Wadding RSSI (signal-strength indicator)

RSSI (signal-strength indicator)

Start with fun experiments to learn basic chemistry principles

color: white-grey

Wide CO measuring range of 0 to 1000PPM

With the new innovated easy Pulse technology

Estes 1672 Blast-Off Model Rocket Engine Assortment Bulk Pack – 24 Engines 6 of each: A8-3, B6-4, C6-3 & C6-5 with Starters, Plugs & Wadding RSSI (signal-strength indicator)PLEASE 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. The Blast off Bulk Pack comes with an assortment of top selling model rocket engines (24 total), along with 30 starters, 24 starter plugs, and ~72 squares of recovery wadding 24 engines total, 4 different types. Includes: Six A8 3 Six B6 4 Six C6 3 Six C6 5 Bulk packs are