Tech Review: K-Ring Contactless Payment Ring –
2019-3-1 · To get started with a K-Ring you need to make sure you order the correct size. The ring is made from an inert resin inner band and a zirconia ceramic outer and packed with contactless technology; so having it resized is not an option! Correct Sizing. K-Ring offers a ring sizer tool for £2 which is then deducted from the price when you order ...
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