'Key Stock Kit, Oversized, End Type Square, Material 18-8 Stainless Steel, Finish Plain, Length 12 In., Number of Pieces 7, Thickness Tolerance -0.002 In., Tensile Strength (PSI) 64, 000, Rockwell Hardness B85, Includes 12 In. Lengths (1) Each: 1/8x1/8 In., 3/16x3/16 In., 1/4x1/4 In., 5/16x5/16 In., 3/8x3/8 In., 7/16x7/16 In., 1/2x1/2 In., and Standable Chipboard Container'