Multicolor Clothespins are everyday items that provide you with the basic materials that 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! ach pack includes 50 pieces. Clothespins measure 2.875 x 0.375. Ages 8+.