"Be A Stargazer" Constellations Mobile. Comes with a 15" wide x 24" long mobile with a two-sided danglers to show each constellation as it appears in the night sky and illustrated with its formation, including a place to mount each of the four 37 cent USP stamps included. The package is approx 9" x 17." and it weighs under one pound at 0. 29lb. It is in good. unused condition and still in original packaging.