Shenzhen Shiguilian Industrial Co, Ltd is one of the few factories specializing in smart finger rings, NFC RFID ceramic ring/epoxy ring/wooden ring and other smart wood items(pendant & bracelets) The scale of our factory is not large,but we have a team of engineers who have mastered the core technology of the chip. Whether it is an RFID NFC chip or a bank chip, our team can make it into a ring, and the sensors are super sensitive, all the rings are waterproof, scratch-resistant, no charge, touch-fee.A high-quality ring needs to go through a long production process and is built step by step by hand.We promise to only do high-quality products, all products are our original products, are patented.