Test Lead Jumper Wire ID?

I was recently contacted about an interesting kind of jumper with male pins that kind of look like banana plugs, but they are neither regular banana or mini as they do not have the same bulge design. testLeadJumpersNotBanana1 testleadjumpnotban2 testleadnotban3 testleadnotban4
The test wire has the same type of connection on both ends, does anyone recognize what these are? I have been trying all sorts of terminology.

That is a standard Tip connector. 2.0 - 2.2 mm.
See these for the diameter
Test leads that are Tip to Tip are hard to find, we have some, but they are not exactly like the one pictured.