Harm and collectable: You will get 9 pieces of 10mm harmless and strong Elements Square, including CU, Al, Sn, C, , Ni, Fe, BI, TI.High purity: The back of the Elements Square is bent, with a purity of 99.9%. Al-99.99%, -99.995%, Ti-99.5%, SB-99.99%, Fe-99.99%, BI-99.99%, Ni-99.5%, C-99.9%, CU-99.95%.Smooth carving and cutting production: All these Elements Square are accurately double-sided carved and cut, with a density almost identical to theoretical data.Vacuum packaging: Density metal Square vacuum packaging to avoid oxidation.Wide range of applications - and gifts for teachers, students, children, friends, chemistry or science enthusiasts, etc; Perfect decoration for home or office desk decoration; Excellent teaching tools to stimulate learning interest and deepen students' memory of periodic tables.size: 10 x 10 x 10mmMaterial: Metalcolour: As shownPackage Contents:9 x Elements SquareOnly 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.