Specification Brand : Daseyyue BulletPoint1 : Quantity: 5 Pcs Metal Block Set.Each block measures 1" (25mm) in length with 1" (25mm) sides BulletPoint2 : Metal Blocks have a wide range of educational applications for all grade levels, including density investigation, specific heat and specific gravity exploration BulletPoint3 : Each piece of metal has a label attached to it so you can tell which material it is, and the label can be removed BulletPoint4 : Oxidation of some materials due to metal activity is a normal phenomenon BulletPoint5 : application:Perfect for the physics classroom. Suitable for students to understand metal properties Color : Silver/Gray ExternallyAssignedProductIdentifier1 : 0726434475961 ExternallyAssignedProductIdentifier2 : 726434475961 ItemForm : Solid ItemName : 5Pcs Metal Block Set,Metal Cube-Brass, Copper,Iron,Steel & Aluminum ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 5 inches ItemPackageDimensions_Width : 3 inches ItemShape : Particle ItemTypeKeyword : specialty-non-ferrous-metals-raw-materials Manufacturer : Daseyyue Material : brass NumberOfItems : 5 PartNumber : 5Pcs Metal Block Set ProductDescription : 5 Pcs Metal Block Set,Metal cube-Brass, Copper,Iron,Steel & Aluminum 【Package Included】 Package: Brass, Copper,Iron,Steel & Aluminum .Each block measures1" (25mm) in length with 1" (25mm) sides Feature: Good material for DIY craft making Perfect for a large variety of projects ranging from arts, crafts, or hobbywork to industrial and scientific use. Each piece of metal has a label attached to it so you can tell which material it is, and the label can be removed