This set of grips came in a big box of take-off parts with the 2020 Softail Deluxe I recently bought. The previous owner had these on the bike for only a short period of time, then replaced them with Kahuna Heated Grips. They look like they just came out of the box, except for a tiny scrape on the end of one, which I touched up and you would be hard-pressed to see now.
I have done some homework, and come up with the H-D Part # of 56100174; it appears that H-D has discontinued this item, as when I plugged in the # on H-D's website under PARTS, it did not come up. Looks like they now have this Defiance grip only for the Street models. Included with the pics is a pic of the item from the 2019 H-D P&A catalog I have, which confirms the part # and lists all the various models it fits, including some out of all of the model families.
Sale is final, so be sure whatever model you might be buying them for is included in the description from the catalog. Listed for $139.95 in the 2019 catalog, looks like up to $145.95 when last available. I'll take $80, with shipping included.