A Pure Zinc Rod / Zinc Metal Bar / Zinc Anode made from 99.99% high‑purity solid zinc in a 1/4‑inch diameter and 4‑inch length is a dependable, lab‑grade material designed for hands‑on scientific work, electrochemical demonstrations, and small‑scale engineering projects. This pack of 4 rods provides consistent, uniform zinc suitable for STEM classrooms, research labs, and science‑fair builds where purity and predictable chemical behavior matter. The solid‑zinc construction ensures clean oxidation reactions, stable electrode performance, and reliable results in galvanic cell experiments, fruit‑battery demonstrations, corrosion studies, and anode‑based testing. Each 4‑inch rod is easy to handle, clip, cut, or mount in classroom setups, while the 1/4‑inch diameter offers durability without sacrificing workability. Whether used for teaching core chemistry concepts, building simple batteries, exploring materials‑science principles, or supplying students with safe, high‑purity metals, this 4‑piece set of 99.99% zinc rods delivers the consistency and performance needed for school scientific experiments, research labs, and STEM project environments. This product is frequently used in water purification and gardening experiments. - MADE IN THE USA