Rocket for C engines

I designed this whole rocket myself. Haven't tested it yet, I hope it works. Use an 1/8 Inch Metal Rod https://www.homedepot.com/p/Everbilt-1-8-in-x-48-in-Plain-Steel-Cold-Rolled-Round-Rod-801567/204273942 You need to make your own launch pad, do that however you like. The last thing you need to purchase are C6-5 Model Rocket engines https://www.hobbylobby.com/Crafts-Hobbies/Hobbies-Collecting/Rockets/C6-5-Model-Rocket-Engines/p/21234 Enjoy :)