High Density: package included 2 piece of 1 inch tungsten Titanium Square with 99.95% purity Elements simple substance, which is suitable for Elements collections, hobbies, DIY, experiments, material display High Accuracy: the Square is with the dimensions of 25.4 (+/-0.1)mm, that is 1 inch Square; The Square with laser marked information on the surface, including: atomic number, chemical symbol, name, density, purity, atomic mass Reliable Material: metal samples Squares are made of high density titanium tungsten Elements Square, safe and reliable, which are practical educational applications for different grade levels, also are suitable for Elements collections and display Beautiful Appearance: the Square has a very beautiful appearance after precise cutting and fine craftsmanship, natural metal (element) color with matt surfaces, metallic strips Wide Application: density Squares can be applied for labs, offices, science sections, teachers, gifts, science demonstrations, and are suitable for different ages, with a nice understanding of metals, elements, different densities Colour:Photo Color Material:Metal Size:about 25.4 x 25.4 x 25.4mm Package Contents: 2 x Metal Elements Squares 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.