/ metrolius offset master cams
Although Totem makes and sells two sizes of CE-rated "Hybrid Basic" (= offset improved Alien) cams in the EU. They might be an alternative.
I thought get them in the UK, but off the top of my head don't know a stockist.
Beyond Hope are the UK distributor. Give them a call on: 01457 838 242 and they should be able to point you in the right direction.
They are CE testet. In Germany you can buy them at bergfreunde.de with 20% off.
Most of the German online shops stock them, they are naturally enough CE.
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