These are doors and windows from 10 copies of the "doors and windows"
service pack. I've regrouped them into larger quantities of each kind of
window or door. So, if what you want is multiple pairs of "glass doors",
without having to buy yet more 1x4x3 red windows, this is for you. And
if you want LOTS of red 1x4x3 windows, this is for you too!
