The ShengShou FTO is available in both magnetic and non magnetic versions, the non magnetic one is the cheapest FTO on the market and the magnetic one is only slightly more expensive than the non magnetic version from QiYi. I think I realise in this video that the price to performance ratio is genuinely linear on FTO which is very unusual in cubing, if you want a cheap FTO then this really isn't a bad option but it does seem to pop a bit, especially on the non magnetic version (but it is only £8).
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