Glowing LED Katanas

I love the sword, to turn it on, lighty tap the golden part of the handle twide, took me a moment to figure out.

It is whats on the tin, the fitting to the handle was a little loose and it feels like its 3D printed, worried that it will break of it accidentally slaps into something. But it looks cool, which is what was expected.

LED doesnt work, instructions very unclear, not a good product at all very unsatisfactory