The Young's Modulus of Wires Apparatus provides the tools needed to study the measure of the stiffness of a material. The aluminum cast frame includes an arm with a built-in bubble level for precise alignment. The apparatus enables the study of stress and strain on materials in a direct, measurable way. The set includes an aluminum cast frame, micrometer screw, wire holder, two screws, an iron weight with hook (approximately 2.6 lbs), and two wires. The micrometer screw allows for precise measurement of wire extension under load.