Construction creativity to go! Portable activity set features built-in storage for all pieces, plus an electronic, handheld screwdriver. Helps children explore counting, colors and shapes while building fine motor and creativity skills. Sturdy plastic components wipe clean. Includes 60 regular bolts (2" high) in 5 vibrant colors, 3 bits, activity guide with 10 patterns and activity board that doubles as a carrying case. Carrying case measures approximately 9-1/4 x 7-1/2". For children in Pre-K and up. Electronic screwdriver requires 3 AA batteries, not included.