Unique ultra thin magnetic catch design with extra strong magnetic force Note: 1) Max. temperature: 80?C (176?F) 2) To avoid breakage, counterplate should not hit magnet 3) Screw heads should not protrude above the base plate 4) Screws not included, use M3 flat head or equivalent 5) Counterplate MC-159-Plate sold separatelyWARNING: This product can expose you to chromium, nickel, which are 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.