there's some dev yashzs away from it, but not many.ly, what we ended up doing when i first -- before we got this book, like i said, it was a matter of me taking what we had and just fabricating the same thing over and over. there was nothing standard about it. so it wasn't, like i said, wasn't until we got this book, that this is now our standard. but -- i think it's a good thing because this has been in -- been using this for years and it still works today the way they originally planned it. we try not to deviate from this. this is our bible for what we do. >> you say you buy hide. what kind of hide is it and where do you get that. >> it's leather, and it's a black harness leather. ideally, we get different grades. depending on what we're making, because the leather goes in thickness and goes from 10 to 11, 11 to 12. depends on how much, if you want length or strength. we go through quite a bit of leather. quite a bit, because ideally, because of we are constantly in the public view, we always try to keep our equipment looking -- main