The IVES SR64 Metal Door Silencer is ideal for quieting the closure of metal doors. Its pneumatic construction forms an air pocket to absorb shock and reduce noise. Designed for tamper-proof installation to the door frame, the SR64 eliminates door rattle and provides constant tension for door latches or locks.For use with metal doors on metal framesPneumatic design absorbs shock and reduces noiseEliminates door rattle and provides constant tensionTamper-proof installationMeets ANSI/BHMA 156.16, L03011Made from 60 Durometer styrene butadiene rubberIncludes installation tool Proposition 65 Information WARNING: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. Further information available at www.p65warnings.ca.gov.