Each Tumblr will be registered with a unique IP and email ( max 3 blog on 1 email )
Why Buy High Metric Tumblr's?
Tumblr is a Moz DA 99 domain. When you combine that withTF you have a powerful tool to rank whatever you want!.
With these high metric tumblrs, you can rank for keywords easily, and increase the power and authority of your domain and url.
What To DO With Tumblr's?
Once you receive the tumblrs, create a 300 word article regarding your niche site/ranking site and link to the site with the anchor text you want. This will give more power and authority to the DOMAIN, and help it rank better in Google.
Important: It is recommend to use VPN when accessing the tumblrs accounts to minimize chance of getting them banned.