Layout of Elements 83 Real Elements The transparent periodic table with real elements is made of acrylic. Acrylic is strong, safe, non-toxic, tasteless and durable. It is crystal clear and you can clearly see samples of items in 3D. The edges are smooth. Ear: 12x8 cm/4.7x3 inches The product contains 83 individual samples of elements from the periodic table. Some elements are excluded due to their rarity and radioactivity. Technetium and Promethium are excluded due to their rarity and radioactivation. Element 84 (Polonium) do 118 (Oganesson) are also disabled. The product contains pure bubbles of gaseous elements (xenon, Krypton, Argon, Neon, helium, oxygen, nitrogen and hydrogen). Cutting in metal in a sustainable way, a solid frame and an alternative model of opening made of metal. This is the perfect prezent for science enthusiasts and your children. You can see the elements very clearly. Safe to handle and store. Excellent do display on desks, tables, etc. This periodic arrangement of elements contains 83 samples of real elements, and some elements are even more expensive than gold. Does not include samples of radioactive elements. Some samples of elements are simple substances, and samples of elements are their stable compounds. USB light in 7 colors. Acrylic periodic table is the perfect prezent for any science or chemical lover. It is also very suitable for children and students, as actual samples of elements can stimulate their interest in science and chemistry. This is the perfect prezent for birthdays, Christmas and contest prizes. It is a unique decoration in the classroom or home. - Inner mesh panties Material: acrylic Product Size: 15*11.3*2 cm 83 elements Wooden Illuminated Stand