WHOLESALE 3pc IMPACT REDUCER SET Tough and durable heat treated construction. Durable black finish resists rust. Quickly converts sockets to correct drive, saving time and money. Includes: 3/8" Female x 1/4" Male: 1/2" Female by 3/8" Male; 3/4" Female x 1/2" Male. ⚠ WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.