The last time we fed a bone, it was one of those huge knuckle bones from petsmart, Seems like the soup bones wouldn't break as sharply as the knuckle bone did.
Is that right? Will they still pass bone pieces with eating a soup bone?
Knuckle bones ARE soup bones - same thing. They are Beef Knuckle bones from the joint of long bones. Grocery stores all carry them and their benefits of feeding the as recreational chewing is as raw bones - no value to cooked and those would be more dangerous since if consumed so large, would have a much harder time passing and breaking down. There is little meat on them but dogs tend to scrape the raw meat and this is an excellent teeth cleaner - I have never had my dogs' teeth cleaned in their life and they better than the kibble fed dogs who get cleanings.
Beware however of the grocery store variety as these are "cut" bones and some are small relative to their orginal state. Cut bones, if you have an aggressive chewer who consumes them, can do damage and come out scraping the intestines. Ideally, if you can order them uncut from a butcher or farmer - huge - at least 8 inches long - that is the best and safest manner - Oh and always RAW.