HF tags reading distance is around 0-15cm. Commonly available chip NTAG213, NTAG215, NTAG216, MF EV1/2 2K/4K/8K , Ultralight C, Ultralight EV1, ICODESLIX, MF PLUS S4K/*4K, MF PLUS S2K/*2K, MF S 50 etc. We can encode different serial numbers, URL/website, text to each Tag as your request. All the size and the shape of the final product can be customize as your request as well.