HDP Premium Natural Rawhide Bones 4-5" Size:Pack of 50

Very glad to receive the shipment as we were almost out of rawhide bones for or dog ( 5 yr old Bernese Mtn dog) that gets one every evening after his walk. They looked different than the rawhide bones we have so far given him i.e. more 'shine' to them. He had one 2 evenings in a row and then started throwing up. Did not think too much about it but changed his food to some dry rice and dry dog food. Discontinued giving him the shiny bones and went back to the old type we used for years. All was well for over a week. Until tonight: gave him another "shiny bone" and he threw up halfway through. Don't know what kind of "coating" causes the shine on these bones, but we do know that it does not agree with our dog at all. Last time we ever will order these and the rest of the shipment goes in the trash (some $36 worth). Disappointed!