Decreases overlay of outset door by 2 mm. Increases clearance of inset doors by 2 mm. Can be doubled for 4 mm thickness. Available Mounting Plates: 36-P4W-3T 36-P4W-3T+5 36-P4W-32T 36-P4W-32T+5 WARNING: 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.