(These are 10mm woven carbon fiber, we also offer 8mm unidirectional square carbon fiber in another listing, and also round shapes in a few sizes. See our other listings for those.)
Something new we are offering...carbon fiber spikes...which I jokingly refer to as vampire straws. Very lightweight, noncorrosive, and low profile they make a good backup self defense item. We also offer solid/non-tube style under another listing.
Tip comes with a basic profile thats been chamfered, you can very easily reshape it by rubbing it on a coarse grit sharpening stone, or sandpaper on a flat surface...if you prefer it sharper, blunter, more acute, more obtuse, etc. Carbon fiber is very strong but not very abrasion resistant so it sharpens much quicker than steel.
I actually put off doing these for years because I wasn't sure how strong they would be. Well after finally getting around to making some test pieces and literally hammering them through 1" thick wood with a deadblow hammer...I'm impressed. A tiny portion of tip does get rounded off doing this, but there was zero structural damage after hammering it through dozens of times. The dulled tip can easily be sharpened on a regular sheet of sandpaper in a few seconds to minute depending on experience. These are intended for soft targets, (use a nail if you want to hammer through wood), but they can definitely hold up to some abuse.
Being very lightweight, they don't work well as a throwing spike...its like trying to throw a straw with force.
Specs:
Ground from standard weave carbon fiber tube
10mm diameter (a fair bit thicker than 3/8"..which is 9.6mm)
6-7" length (length will vary slightly due to being handmade)