Layla has EIDAP. We are in Canada so there are only like two kinds and we used this as it can be read internationally. which in short means if we are travelling in the USA any of the readers will be able to read her chip. It costs 40 dollars to get it put in and then 17 dollars to register her, it is only 11 if you don't want to include a picture. Layla didn' even flinch when they did it and she is a huge suck... cries when she gets her needles
but she did bleed a bit where they put it in.