This Marin Pioneer Trail has an aluminum frame and Suntour suspension fork. It currently has fast-rolling tires that can work on dirt, gravel or even pavement. This could be a good commute to school bike.
With a 55cm effective top tube and a 38cm seat tube (c-c), the official size is 17" and should fit most riders in the 5'5" to 5'8" range.
The 3x8 drivetrain provides plenty of gearing for just about any climb you could encounter. The mechanical disc brakes also provide good stopping power. This bike is a good all-arounder.
This Marin hardtail is in overall Good used condition. There are some minor scuffs and scrapes from normal usage. Mechanically, the bike is tuned and ready to ride.