This weight hanger is made from steel that has been nickel-plated. It weighs 50g and can be used to hang additional slotted weights (not included).
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including nickel and 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.