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Your cart is empty.Notes If you don't know which ring size to choose, you can repeatedly measure at the bottom of the second joint of your finger and take the maximum value. The raw material used in this ring is natural zirconia processed. You don't have to worry about the ring fading (because its color is natural). Although this ring is marked with waterproof and anti drop features, try not to let it soak in water for a long time and frequently bump.Product Parameters【Product Name】IC Copy Ring【Chip】 CUID【Frequency】13.56mHz【Material】Zirconia (all ceramic)【Color】Black【Dimensions】6 #, 7 #, 8 #, 9 #, 10 #, 11 #, 12#【Function】Copy Mifare 1K S50 and FM1108 smart cards, usually used for access control, elevators, parking lots, cabinet locks, and other purposes.【Rewrite Count】>100000 times【Storage time】10 years