These are common colors of leashes that I have made up ahead of time.  Many of them are hanging in the leather room just waiting to have a handle put on them. In case a ring needs to go into the handle.

Leash Lengths choose one
Choose Width
Hardware options

Rule of thumb for hardware on the leashes: Cool colors dominate black, blue, greens will have silver hardware, Warm colors dominate Tobacco, Purple, Red, will have brass

Ultralight and lightweight may have Small or Medium snaps either color.  The Standard is an overkill for those two sizes, even if you have a big dog.  The leather will break before a Medium snap