Our flat electrodes are 18mm by 100mm, or approximately .75" by 4". The metal electrodes are 1mm thick, while the carbon electrode is 6mm thick.
This set contains twelve electrodes – two zinc, two copper, two steel, two aluminum, two nickel, and two carbon.
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including nickel (nickel electrodes only) and lead (all metal electrodes), which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.