These are 1-1/4" x 1 x 1/8" leather stack handle washers for use with hidden tang knives. The inner opening is designed for sliding over the tang and will be compressed into a very high-grip surface when finished. This is similar to many traditional knife handles and is one of the most comfortable handle treatments available. This type of handle is also simple to construct.
1-1/4" x 1" x 1/8"