It does last a little while but must monitor them because they can choke. If they have nothing else they will chew it but if there is a bully stick or some other tasty treat around they could care less for this thing. I have a 1 yr old goldendoodle and 5 yr old ChiPinI have bought these several times for my dog and she loved them, even referred a friend. However the last 2 orders I have received, the ears still have hair on them, not just a little but in some areas thick hair. I returned one order to have it replaced by another order that was the same quality, it looked as it was returned from another customer and shipped back out to me. Cancelling my subscription and will find product elsewhere. 5/11/20. I was contacted by the company who apologized for the product. Sent me a replacement product, a very nice note and Himalayan Dog Chews for my dog. The product is at the high quality I had been use too, my dog loves them. We tried other brands but she just didn't care for them. Thank you so much EcoKind, for you great customer service and product.I will preface this review by saying I an disappointed in Eckokind brand, I have ordered numerous items from them with consistent results that are premium quality. The 50 count cow ears did not live up to those standards.Packaging is shown to be a resealable bag to keep product fresh. What I receieved was a box of loose ears... when I first opened the box I saw several large jumbo ears, I was excited! I pawed through the box only to find there were four or five of those jumbo ears laying on top, the rest were small, not even half the size of those jumbo ears! You can see from my photos one of the jumbo ear is bigger than even two of the smaller ones! I did measure the jumbo ears I receieved and they averaged 8 to 10 inches. I also measured the smaller ears and you can see from the photos they barely make 4 to 5 inches. The description on this listing states an average of 8 inches! Saying I am disappointed is an understatement.I also noticed the ones in the description are not see through, but all of the ears I receieved are so thin you can see through them. Maybe this is part of their drying/curing process, but when the listing states premium, jumbo, thick ears I was expecting...well more than what I receieved for sure! I will keep hunting for a brand of treats that lives up to their description.My dog loves these, which is amazing because he bores easily with his toys, including stuff like this! I think he loves hearing the big crunch when he chews them, & they last longer than most stuff like this (he chews thru his toys very quickly!!!). Whatever the reason, he loves them. We're on our 2nd bag. I also love that I received them within just a couple days of ordering too. Great product from a great seller! Highly recommend!Our chihuahua can finish a pig ear in 30 minutes these take him days to eat. He loves these. Will definitely keep a supplyThe large and small pups loved these ears. Yes, the ears gave all the pups a long lasting chew.Problem is these are NOT THICK. They are thin, maybe 1mm thick each and the width of a woman’s hand wide. Looking at them, they give the impression they were sliced that way.Will I buy again? Possibly and only because there are so Amy in the packaging. I can get big ass, real cow ears for $1.99 each. So, it depends on what one is looking for.My Cavalier King Charles loves these! He really looks forward to them! He pretty much tears through all “long lasting” treats but these so slow him down a tad. However I do wish the lasted longer but then he wouldn’t be interested in them.Decent chew toy for about a 30 minute distraction, especially if you have a meeting you need to run :)