This is Ivan's 'Hunter' Notebook leathercraft kit.
It contains the leather pieces, hardware, notebook and instructions needed to complete this notebook, which measures 22cm x 17cm x 2cm when complete. (8.75" x 6.5" x 0.75")
Please see product photos for required tools list. It is often possible to use similar tools that you already have, rather than having to purchase everything on the list!