C-Line Heavy-duty Document Sorter - 31 x Divider(s) - Printed Tab(s) - Character/Digit/Month/Weekday - A-Z, 0-31, 1-2000, January-December, Sunday-Saturday - 8.5" Divider Width x 11" Divider Length - Letter - Blue Pressboard Divider - Metal Tab(s) - 1 Each Sorter provides the quickest, easiest way to sort and file purchase orders, invoices, checks, letters and other office documents. Heavy-duty pressboard construction is durable and features insertable metal tabs and plastic windows. Includes five indexing systems on 31 letter-size dividers: alphabetical (A-Z), numerical (0-2,000), monthly (January-December), dates (1-31), days of week (Sunday-Saturday).