Mini Density cube set,Study Several Properties of Matter. Learn about density, mass, volume, buoynacy, specific gravity, and flotation while experimenting with real-world materials. Made from commonly used aluminum, copper, steel, brass, and zinc.
Flint Standard Wall Glass Tubing, Machine-made tubing is designed from a formula that combines all the properties necessary for easy bending and blowing work, Lead and Potash-Free, Uniform Diameter and Wall Thickness, Dimension: 0.7 x 122 cm