The Colorform Aliens, also known as the Outer Space Men, is a group of seven action figures and are similar to Major Matt Mason from Mattel. They were produced by the Colorforms Co. in 1968, but were designed by toy inventor Mel Birnkrant.
The 3.5" to 7" bendable figures incorporate a pliable metal wire armature encased in painted soft vinyl bodies with "accordion" joints, just like the aforementioned Major Matt Mason line, with whom The Outer Space Men were initially designed to be utilized. Each fictional character represents an extraterrestrial being from the planets in our Solar System, as well as various places in our galaxy.
What's it worth? Take a look at this Colorform Aliens price guide: sold listings for a value indication.