This jig is made of Polyoxymethylene which has been polished smooth to provide a precise guide to a 45deg cut. Jig also has a pretty substantial heft to it for stability. Tip to use: A few strips of leather can be affixed at the same time if they are smaller than 22cm combined to do a 45deg cut at one go.
If the piece of leather is too small, additional weight can also be applied at the top of the jig for stability where needed.
Dimension of jig at 26cm x 82cm x 30cm. A maximum length of 22cm leather can be inserted to make the 45 degree cut.