Superstretch and Microwoman

Superstretch and Microwoman are a fictional, shape-shifting, husband and wife crime-fighting team, shown as a segment of "Tarzan and the Super 7".
On the surface Chris and Christy Cross were just your average suburban couple. But when they sprang into action, Chris could take virtually any shape (such as a plane, a robot, a rubber ball, a perfect double of a villain, etc.).
Christy could, as her name implied, shrink to microscopic size. Frequently tagging along on their adventures was their little dog, Trouble. The duo was a new concept for superhero cartoons in that they were the first African-American man/woman duo, and that they did not change into superhero costumes when the need to use their powers came, or adopt a "secret identity", simply wearing ordinary clothes. They were generally seen in lightweight adventures that were resolved simply, although a few episodes had them dealing with major crimes or a supernatural evil. Some times if the need arose, Christy and Chris would use their powers not to fight crime, but to accomplish household chores.