I bought three of these G-Kites deltas specifically to fly together.  Their bright colours light up the sky on even the dullest of days.  The Radian comes in four colour schemes and two sizes.  Mine are 7ft wingspan, and the other version is 9ft.  The kites are well-made in ripstop nylon with fibreglass spars, and plenty of reinforcing where needed, so they should give good service.  Like all deltas, they are easy to assemble and to fly.  The tails are included in the price and come already attached to the kite.  This is good choice as a beginning kite for an adult or older child.  The 2012 list price is $38 direct from G-Kites, but I was lucky enough to pick up mine at the old price from Into the Wind.