9217 Terminal Block Jumpers for 2500 Series Blocks Features: Jumpers allow creation of common circuits on independent connectors Fits 30 Ampere terminal blocks (2500 Series) Bus Material: Nicke-Plated Brass WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.