WHOLESALE 6 PACK SMALL NEODYMIUM MAGNETS Will not corrode. Great for the household, workshop, and toolbox. Use as a teaching tool and for school projects. 1/2" diameter x 1/8" thick. ⚠ WARNING: This product can expose you to LEAD, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.