Never heard of these(Elk/Deer Antlers) till Moses started Puppy Class .
There are some post here on this forum (if you want to do a search)

For me they are worth their weight in gold.
See there are a lot of new puppies ...on JL

Got one for Moses.. paid 30 bucks.
Had it for over 3 months and looks like new
Moses chews on it 15 to 30 minutes a day which is priceless

Maybe check these out with your vet ..
....for me ..it was money well spent

Never hurts to talk too much about a good thing