Description Slip on these fire resistant Lincoln Electric black welding sleeves to keep you cool and protected while welding. The 9 oz., 100% flame retardant material provides spatter and heat resistance, while the split leather panels provide durable protection in high wear areas. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov