I have put off buying these. I even tried to makeshift my own out of shelves, tables, etc. because of the high cost of the klimb. Well I finally bit the bullet and purchased two of them. There is nothing else like them. They are stable, well made, versatile and still a bit pricey but they have been a game changer for my training whether it be obedience, disc, tricks, herding fundamentals, etc. I highly recommend them.