9 Pair 1/4'' Steel Parallel Set 6'' Long 0.0002'' Sqaure Precision 3/4 in 1-3/4 9 Pair 1/4'' x 6'' parallel set; 1/4" thick 6" long Used for layout work, standards and setup; Holes designed for easier handling and setup Accuracy 0.0002"; Storage case INCLUDED Weight: 9.75lbs (roughly) Quantity: 1 set (9 pair, total of 18 pieces); Case overall dimension: 7''L x 8-1/2''W x 2-1/2''H