Pressed Bone Is 100-Percent All Natural Rawhide With No Additives Or Preservatives Bone Is Made By Fusing Layers Of Cow Rawhide Under Intense Pressure Into A Dense Core, Resulting In An Extremely Durable And Long-Lasting Helps To Maintain Your Pet'S Dental Health By Removing Tartar And Massaging Your Dog'S Gums Includes 25-Piece Per Pack Measures 4-1/2-Inch Length