Empire Imports 24 lb. A5 Size Multi-Purpose Paper, Case of 20 Reams, 250 Sheets per Ream, White (A524C) 20 reams per case, 250 sheets per ream Sheet size is 5.83 x 8.27 inches (148 x 210 mm) Brightness is 96 Grams per square Meter (GSM) is 90