Description: 1. The product include the 83 individual element samples comprising the periodic table. Some of the elements are excluded due to their rarity and radioactivity. 2. Technetium and Promethium are excluded due to their rarity and radioactivit. 3. Elements 84 (Polonium) through 118 (Oganesson) are also excluded. 4. The product contains pure bubbles of the gaseous elements (Xenon, Krypton, Argon, Neon, Helium, Oxygen, Nitrogen, and Hydrogen). Feature: 1. It's an ideal gift for science enthusiasts and your kids. 2. You can very clear to see the elements. 3. Safe to handle and store. 4. Great for display on desks, tables, etc. Specification: Material: Acrylic Product size: 15*11.3*2 cm (Because of manual measurement, there will be a slight deviation in size) Package Include: 1 x Periodic Table with real element