For this service I build around 100 profile links of a very high quality, these are diversity links (so all brand and URL anchor text which is what all top ranking sites have a majority of) but done to a very high level. So they all have unique and high quality content and they all get indexed by Google so this makes them very effective links. So they all have relevant content that is completely unique to that profile and it's high quality content too, so these profiles can actually rank for your keywords themselves which makes them extremely good links as Google clearly see them as being relevant if they are ranking in the top 100. I submit them to the best indexing service over a period of 30 days so after one month most of them will be indexed and Google keeps them indexed as they have that unique and high quality content. So these are great diversity links and can also give you a rankings boost, when used alongside strong links these are extremely effective and one of the key parts to a strong and natural back link profile. It's important that your back link profile looks natural with natural anchor text (so mostly brand and URL anchor text) and this is a great way of getting that.