The Huck is the ONLY toy my Jack plays with. She's an avid chewer and the huck lasts about 6 months before I have to replace it. Even then, she only gets small bits out of it, but I replace it because once she's got that far, she can really begin to destroy it. She chews on the huck every day, plays with it, drops it down the stairs to run after it, sleeps with it, she just LOVES it.
I buy the small Huck in bulk(6 at a time) and that lasts a LONG time but I'm afraid I might not be able to find one when she ruins one.
I highly recommend them for Jacks as they are so sturdily built and believe me, she's put them to the test, time and again, and it's the ONLY chew toy that has lasted. Maybe for larger dogs they aren't as good, but for the smaller dog, they're great. We LOVE OUR HUCKS!