Bringing the creativity of Plus-Plus to wherever you learn, work or play these days, BOKS is a sturdy wooden platform that supports all your amazing ideas. It's designed for your desk, home office, conference room, kitchen table, or anywhere you want to add some fun and function. This set includes 1 sturdy wooden platform, 220 Plus-Plus pieces, 1 green baseplate, and 1 wheel. Build a windmill, a phone holder, a pen-and-note holder, or anything else you can imagine! Includes step-by-step instructions, or you can visit the "Learning" section of our website or download the free app for even more inspiration! A perfect STEM toy to develop fine motor skills, focus and patience - as well as design, imagination and creativity! Designed and made in Denmark. Made with 100% wind energy. BPA-free and phthalate-free. Suggested for ages 5-12. Each piece measures .75" x .5" (20mm x 12mm). Each baseplate measures 4.5" x 4.5" (114mm x 114mm). Each wheel measures 1.4" x 0.125" (35.56mm x 3.175mm).