50-piece set with SAE and metric sockets Metric sizes from 8mm to 22mm and SAE sizes from 5/16″ to 3/4″ Made of chrome vanadium steel with a black phosphate finish 6-point socket design for a secure grip on fasteners Includes 3″ and 6″ extension bars, a universal joint, and socket adapters Comes with a storage case for organization and portability