I have already purchased several silicone skins to protect the iPad's back when sitting it down on not so friendly surfaces and all fitted like crap! Some wrapped so far around the screen that they got in the way.
I finally got one from the Apple Store
made by InCase and WOW! It fits perfectly and makes holding the iPad a joy while protecting the back from scuffs.
Do not waste your money and get the InCase. All the holes match up perfectly and it has a great feel/grip. Just my opinion and I seldom like to recommend any product
I finally got one from the Apple Store

Do not waste your money and get the InCase. All the holes match up perfectly and it has a great feel/grip. Just my opinion and I seldom like to recommend any product