Heavy duty chrome vanadium steel with black oxide finish
4 adapter sizes: 1/4" F to 3/8" M; 3/8" F to 1/4" M; 3/8" F to 1/2" M; 1/2" F to 3/8" M
3 Universal joint sizes: 1/4", 3/8" and 1/2" dr.
WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.