Stretch Armstrong keeps best at room temperature. Stretch Armstrong is made of latex rubber filled with gelled corn syrup, which allows it to retain shape for a short time before shrinking to its original shape. An estimated 67 different versions from Japan, Germany, Italy, France, Australia, and other countries released Stretch Armstrong variations between 1976 and the 1990s. The last two were filled with a granular solid in place of the viscous liquid found in the other figures. A vacuum pump, which attached to the heads of these figures, removed the air from within, which "froze" the toy in its stretched position.
Kenner Products was created to capitalize on the phenomenal success of the cinematic version of the character. Later toy lines expanded beyond the movie series and took inspiration from Batman's animated series and comic book incarnations. Kenner went on to develop lines centered on Superman and other DC Comics characters as well. As with "The Real Ghostbusters", most of these DC Comics lines incorporated multi-colored costumes, weapons and action features which were not based directly on any existing storylines, although the character names and likenesses were typically drawn from the source material. This design approach to the DC Comics toy lines was