The kit shows Jekyll already transformed into Hyde, holding the formula beaker up while grasping his own neck. Also on the flat base are a stool, table (complete with other beakers and spider web), two rats, and a nameplate that gives the name of the kit.
The Mr. Hyde depicted here closely resembles that portrayed by Fredric March on film.
There are two versions of this model: the original and the Glow Monsters version, with extra glow-in-the-dark parts, with two different boxes (Glow Monster version shown at right).
Note: The original molds for this model have apparently been lost or destroyed, so that no exact modern reproductions can be made.