- Build your own 19” x 5” x 5” (47.5 x 13 x 13 cm) sword and 16” x 12.5” (40.5 x 32 cm) shield that you can actually play with (safely) * - Includes 342 discs, high quality 8.5” x 11” instructional booklet with large diagrams, and gift box packaging * - Develops STEM & spatial thinking, engineering skills, imagination, confidence, dexterity, and hand eye coordination * - Braingineers can assemble the shield and sword in 20-30 minutes * - For ages 5+| Patented Brain Flakes discs click together easily| Discs measure 1.3 inches or 3.3 cm across *