As part of the collectible The Fantasy Worlds of Irwin Allen pin series, this installment of the four-pin collection features the venerable Jupiter 2 and Lost in Space logo, with an alien landscape as background.
As with others in this particular collection, each triangular "wedge" fits into a square demonstrating four of Irwin Allen's 1960s series, including Voyage to the Bottom of the Sea, Lost in Space, Land of the Giants and The Time Tunnel.