Sainty International 11-501 Ratcheting Driver Set, 26-Piece 1/4" adaptor and Socket set: 9/32" 5/16" 11/32" 3/8" 7/16" 15/32" Slotted sizes are: 1/8 by 2-inch, 3/16 by 2-inch and 1/4" by 2-inch Pieces are made using chrome vanadium steel Handle information length 3.75inch, width 0.75inch Comes with a lifetime warranty