Physics balls can serve a number of different purposes in both the classroom and lab setting.
These steel balls are 19mm in diameter and each have a 3mm drilled hole. Sold in a case of 100 balls.
PRODUCT WARNINGS
WARNING: This product can expose you to chemicals including lead (all metal balls and all hooks) and chromium (steel balls only), 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.
This product consists of small balls, making it a choking hazard. Only use with adult supervision.
Our products are not toys. Use in a laboratory or educational setting only. Not for children 13 and under.