Like new, used only a few times.
17' model 20-417-T1AS
Extended straight up the max is 17' min. 8'.
The photo I show is the highest step ladder and I am guessing 4'-4'6"
Here is some more info
Cosco 17' Multi-Positon Ladder System
Product Model: #20417T1ASE
We’ve taken convenience to new heights with this 5-in-1 ladder. Whether you need to clean ...