Wooden Construction Set Patterns with Nuts and Bolts Toy - Fine Motor Montessori Activity for Toddlers - wood toy Use the large wood nuts and bolts to recreate one of the 12 included patterns. Includes 13 wooden nuts and bolts construction pieces including 5 wooden sticks with holes, 4 bolts and 4 blocks You get 6 laminated cards professionally printed on 100# cardstock and laminated with 5 mil lamination. The cards are classroom tough. Cards measure 4.2"x 2.7" The longest wood piece is 8.5" and the bolts are 2.5" - 3.5" long. Bolt heads and square pieces are 1.25" wide. fine motor pincer grasp used in order to manipulate the nuts. Builds hand muscles and dexterity and utilizes both hands which are essential for a proper pencil grasp.