The original Crawligator had success in the late 60s, but somehow disappeared from the shelf. In fact, people still sell the vintage version online.
However, safety regulations were different in 1969, so when Stacey Kohler decided to bring back
...
the Crawligator, she did so with more safety features to meet today's Consumer Products Safety Commission safety standards, including;
A single directional gripping rear wheel to prevent
uncontrolled movement