This 50g brass weight has a hook on either end so that it can be hung from something and have another weight hung in tandem from it.
PRODUCT WARNINGS
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.