83 real elements included Each periodic table contains a sample of 83 real elements. All other elements, as they are dangerous by radioactivity, have been excluded. Safe and durable material The board is made of high quality transparent resin, which is safe, non-toxic, odorless and durable. Compact dimensions The board measures 150 x 114 x 20 mm. Why this helps - Provides a tactile, real element reference for learning and quick consultation. - Transparent resin allows clear viewing of the element labels and arrangement on the board. - Durable and safe for frequent handling in classroom, lab, or home study. Practical uses - Classroom teaching and student reference during lessons on the periodic table and element properties. - Science fair or classroom display to illustrate real element samples and periodic relationships. - Home study desk reference for ongoing learning and curious exploration of chemistry.