Slides are inclined planes that usually descend from a fixed platform to the ground. They are described here by number of chutes (single, double, or triple) direction of the chute (straight, curved, or corkscrew), and other distinguishing characteristics.
A slide consisting of parallel metal tubes set at an incline with additional metal tubes shaped into ovals above. Or a climbing element consisting of parallel metal tubes set at an incline with additional metal tubes shaped into ovals above.
It's part stairs and part slide - it's stairs and slide! But seriously, it's a standalone element with stairs on one side and a single straight slide on the other.