These everyday items provide you with the basic materials you need to build your next STEM creation. We provide the " basics," but the rest is up to you, your creativity, and your STEM skills. Use STEM Basics to support your favorite STEM Starters Kit, or design and construct a STEM challenge of your own. Each pack includes 100 pieces: (6) 1" x 6" , (4) 1" x 3" , (4) 1" x 5" , (6) 1" x 4" , (6) 1" x 10" , (2) 5" dia., (4) 3" x 6" , (4)5" x 5" , (4) 3" x 3" , (4) 2" x 2" x 2" , (2) 2" x 3" , (4) 3" dia., and 50 brads.