All-in-One is a product sold by Tandy Leather Factory. It is both a dye and a finish all in one!
It works very well in situations where you want to dye a complete piece of leather. It also has a darkening effect in tool impressions. The finish is much like Super Sheen, a water based acrylic finish. There is therfore no fumes to sniff or worry about.
In the MINI MOVIE you will see how this product is applied and how the excess is wiped off. Take care to wipe off very lightly so that the All-in-One that is in the tool impressions, do not get wipes out of those depressons – you want it to dry there to have the eventual darker effect.
The photo below show the finshed piece of leather incorporated into a card holder.
(The back part of the card holder was done in the frog skin pattern shown else where in this blog and then it was colored with acrylic paint.)