Spintronics-ketting (300 schakels)

I purchased for presents for grandkids and when after a short period they experienced some links breaking you immediately addressed this and sent more complimentary links, no questions asked. Great service thank you.

Spintronic Chain (300 links)

I ordered this together with some other extra parts so i could build some things that were slightly more complex than what is in the puzzle book. Once I had it, i found our that having a bit of extra chain also means that you spend a lot less time shortening and lengthening chains as there will often be some chain that was used before and happens to have the right length.
Also: For the more complicated puzzles from the book part placement just becomes a bit easier as the length of available chains will no longer be the bottleneck.

Title says it all.

Lovely awesome company