These are nice baskets but they are not "fully extending". They do extend further than none-extending baskets (bought those too by mistake) but still about 4" of the shelf basket is inside the cabinet. As I have my shelves quite close in an attempt to maximize my pantry space, I still can't get to the back of the basket..
They are excellent quality and a breeze to install: Just remember to secure the shelf at the back of the cabinet so that it doesn't tip when you slide the basket out (I am not sure it says that in the instructions). Like everything: measure well before you drill and remember door hinges take up space.