The Hornady Primer Turning Tray is the perfect tool for a reloader that is using a tool that requires all of the primers to be loaded in the same direction. Place a box of primers on the tray, place the lid on top of the bottom tray and gently shake. All of the primers will be orientated the same direction. Notes: Bottom tray is 4" in diameter Made In United States of Americawarning-icon WARNING: This product can expose you to Lead, which is 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.