Wrong size 2 1

This is usually the problem of Amazon when it comes to defining items or features are important to be aware of what you buy (yes we do not see what you buy) eg weight , but especially as dimensions for this harness What is the data dimensions. In this case we talk about large dog ????? what is a big dog? Then you are told Size 50 - 60 cm? The definition of the size of a dog is the height at the withers
I have an Australian Shepherd and that's my problem, height: 51 to 58 cm for the male so I chose the harness 50-60 cm and I get a harness "SMALL" is a Small Dog Harness ?? ? So big deal to Amazon. In fact Amazon mocks define an article he takes the supplier characteristics and makes a copy paste. How many times when you see the "data sheet" you do not have the right information to buy. Of course for a book, a CD, a TV no problem but when we want an article where one needs precision is very poorly explained. Conclusion when Amazon puts an online article it should have competent people to take the place of the buyer and well answer the question "WHAT" but that it would cost too much and yes Amazon Amazon is not a real shopping is just a mailbox and I do not tell you after bazard it is to return an item the site is so complicated that this is confusing and getting irritated. Yes Amazon you need much you improve and stop taking people for fools.