Today at PetSmart I bought a Starmark everlasting treat sprocket (large size) for my pit who is a heavy chewer. The product boasted, "virtually indestructible." I paid over $20 including tax. It took my dog 5 minutes to remove the treat. It took 40 minutes more for him to completely chew the sprocket to pieces. User's recommendation: I do not recommend this product. It is a waste of money.