This pair of thin aluminum foil pieces is sold to replace worn out foil in many electroscopes (#4-50140) or to create your own at home. Each strip comes punched with two holes in the top.
WARNING: This product can expose you to chemicals including lead, 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.