Absolutely loved these..Really can’t say anything bad at all. If only they can last for about 3 hours would be awesome but my pitbulls and I have 5 of them only lasted about 48 mins and 22 seconds. Lol..My dog was trying to get them out of box before opened then pulled bag out trying to get to them. She loves them.Dogs love it. It really helps keep their teeth clean too. Also keeps them busy for hours.When I open the bag there is an awful smell that I don’t get with Redbarn. This would be a great value for the money if I wasn’t concerned about chemicals and processing. My dog loves them but I won’t be getting this brand again. Can’t recommend.I got the 12 pack of cow ears as I wanted to test how long they would last and if they might cause any digestive issues. I have a golden and rough collie, and they absolutely love these cow ears!They arent the heaviest of chewers but bully sticks were getting expensive and my collie likes to swallow small pieces. These ears are folded in some places that make my pups chew and chew and chew some more to really get some yummy ear. They will chew for up to an hour at times and still not finish, so I'll save it for the next day. Just make sure with any treat, you check in to see how small the ear is getting. My collie doesnt seem to swallow the small pieces and she feels like she has to keep chewing (LOVE THIS!)It's been the 4th day I've given them the cow ears and there is no sign of digestive upset. I'm super satisfied and will probably go for the 100 pack!All of our dogs seem to like it but for the large dog the product is too small it’s gone in about three bitesThis product caused the death of a beloved dog. She wasn’t old, she wasn’t naughty, she wasn’t over fed or anything of the sort, she was a good girl and apart of our family for years and had her life cut short by the cut throats who made this product.Please note: I purposely waited a few days to collect my thoughts to respond rationally to this review, and attempt to leave emotion out of it; which is difficult due to the FACT that THIS product was the ONLY new thing to her diet and soon after consumption, later that night her belly bloated and before she was able to get to a Vet, she died due to intestinal blockage.As some customer service representative or company executive might be saying to themselves while reading this, “she’s was just a Dog”, well, let me clarify something to that thought process “if” you are so ignorantly inclined to think that...She wasn’t just a Dog!!! All pups in our family are family members. She had a name, it is Annie. She took part in raising children in a family as their companion.These were considered to be “safe, easy digestible alternatives” as treats.... what a sick sick sick statement is. This is why the Food & Drug Administration (FDA) are a joke in this country because companies like these have very little oversight and even less regulatory standards. We know definitively it was this product that was the cause of death and a copy of this review will be sent to other sites, for which this product might be sold, as well as the better business bureau, in hopes someone forces the regulatory standards much higher to ensure this never happens again.Want to give me a refund, keep you’re murdering money... put it to making a product that’s actually safe!In closing, this company sells death treats. False advertising makes you believe they are safe, but we can assure you, they are NOT safe. This product killed our Annie.my dogs love it! they enjoy gnawing on it for a few minutes....awesome considering most things that are advertised as "long lasting" they inhale in a couple seconds.