From the manufacturer:
This Zentangle Tool Set is a great starter set. It contains five pens filled with luscious Pigma ink. Included are an 01, 03, 05, 08, and a Graphic 1. This set is complete with square white tiles, a graphite pencil for creating strings and shades of gray, and a tortillion to buff out your added graphite. With this set you are sure to get lost in the world of creating beautiful, non-representational art using the Zentangle Method. This set is licensed by Sakura of America.