"With 29 chrome molybdenum alloy steel jumbo impact sockets ranging from 3/4in. to 2 1/2in. in a heavy-duty blow-mold case with wheels, you'll be ready for any job. Drive in. 3/4, Material Type Chrome molybdenum, Point 6, Pieces qty. 29, SAE Socket Size in. 3/4-2 1/2, Storage Type Plastic case, Measurement Type Standard SAE, Specialized Pieces qty. 0."