Industrial-grade plastic with see-through, hinged lid. Includes easy-lift handles and built-in tracks for letter or legal size hanging file folders (not included). Use file alone or set inside Heavy-Duty File Shuttle II (AVTFS2BHD), sold separately, for easy mobility. Holds up to 40 lbs. 17w x 14d x 11h. Shpg. wt. 8 lbs.