If you want a traditional box kite, this is the one to go for.  From Into the Wind, it is colourful, well-made of ripstop nylon and fibreglass spars, and quite big at 4ft by 3ft by 3ft.  Like most box kites, it needs stronger breezes to fly, usually from about 8 to 10mph up to a quoted maximum of 30mph.  I haven’t flown mine in quite such high winds, but I can say that it pulls hard in anything over about 15mph, and will lift plenty of line art/laundry.  At $65 (2012 price) it is good value and should last a long time.