I think thats because use of bicarbonate material. it is not flexible. but safty wise good if met with fire.mage laga ekak thiyanawa, but bima watila screw insert eka kaduna, so one side is flimsy now.
socket quality and wire quality is top notch but plastic enclosure is not so much
so it breaks compared to nylon or plastic used products.
that why i sadi kanu kadenawa.