I like these. The orginal ones are still intact but its nice to have a spare set for when I probably go and mislay one. Cannot complain about the price either.
Integral item for the cube and useful replacement. The only downside is when it is dark it is very difficult to see the dang things as they are the same colour as the wire on the cube - I have put reflective tape and tried reflective paint but often resort to a twig. I have also thought of compling the two together.
But overall good.
Being a cautious person, I bought spare runs pins as a precaution against misplacing my current ones on a dark winter's night when the rain is lashing down and the westerly wind is blowing at gale force. The really clever thing would be to remember where I have stored them!