2pcs 10mm Carbon Fiber Rods 10x420mm,10mm Solid Carbon Fiber Tube(pultrusion) Length 420mm

Performs as expected

I handed this rod, that weighed about what you would expect aluminum to weigh, to several people and challenged them to bend to break it with their bare hands. All gave a shocked look as it didn't budge! Super strong and light. Used them for a 3D print that needed some extra strong support.

Nice product but had the impression from photos they were very flexible and be able to bake a 45+ degree angle. No way. Good rods if you need them stiff

They are not accurate enough in diameter and range from 10.05 to 10.1mm. Not horrible unless you need them to fit 10mm bearings or flanges, which I did. Expect to have to turn them down to size if you need exactly 10.0mm. They are straight and otherwise well made, just not true to size.

Sheared off at the hole. May be it can be used as a structural support. Excellent torsional rigidity. Not meant for applications to support impact.