Exquisite real periodic table display: Unlike other printed versions, our periodic table contains 85 real stable elements. Because of the radioactivity and rarity of some products, they are excluded.. The periodic table of elements is made of acrylic acid, with high light transmittance, and the elements inside can be clearly seen. Real periodic table of elements: concrete learning helps children to enhance their understanding and memory of elements, which is an perfect teaching tool in the classroom. Show your periodic table or school, you can always see it, deepen your memory, and create a very warm learning atmosphere. Periodic Table Gift: The periodic table containing real elements is the for science or chemistry lovers.With wooden base It can be put on the table or in the hand for learning and research. As a decorative display anywhere, it will be pleasing to the eyes. Extensive application: The periodic table can be used in classrooms and laboratories to provide students with professional teaching tools to make learning more interesting and suitable as a teachers and students. Note: No harmful elements. Keep it clean with a cloth every time you touch it to avoid leaving . Colour:transparent Material:Acrylic Size:150 x 114 x 20mm Package Contents: 1 x periodic table With wooden base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.