Great for display on desks and shelves. It is ideal for home, office or school class decoration. Perfect gift for students, teachers and professionals. Especially designed for students, teachers and also for professionals in various engineering and scientific industries. It is ideal for teaching and inspiring. About the Product: Did you know that this year is the 150th anniversary since the discovery of the periodic element system by Dmitri Mendeleev? To celebrate this historic event, we are thrilled to bring the elements of the world to you! OUR GUARANTEE We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!