EDGEWOOD5 Drawer Vertical File Cabinet Filing Storage Wood Organizer Dresser Chest Under Desk, 16" D x 16" W x 26" H, White

Drawer height is listed as 4.5"- is that the actual usable height inside the drawer? I am storing 4" paint bottles and need to be sure they will fit.

Is the finish glossy?

Why are these drawers getting stuck?? They go in fine, but as soon as they're in all the way it's a fight to get them back out!

Missing one piece of wood, the k piece. How can I get that piece shipped to me?