Supertray Countertop Tray Set, 2 Sections, Letter To Legal Size Files, 11" X 14.88" X 2.5", Black, 2/packDurable plastic.Two trays plus four 3" and four 5" plastic risers per set.5" risers allow for 6.5" storage capacity in bottom tray. WARNING: This product can expose you to 1,3-Butadiene, which is known to the State of California to cause Cancer and Birth Defect/Reproductive Harm. For more information go to www.P65Warnings.ca.gov. - Cancer:1,3-Butadiene;;Birth Defect/Reproductive Harm:1,3-Butadiene