Forget the mess and easily organize student's papers and assignments with Classroom Keepers 30-Slot Mailbox. The blue mailbox includes 30 slots with individual name tabs, and an instruction manual for easy setup. Because Classroom Keepers also has a 15-slot and 10-slot mailbox option, mix and match to create the perfect setup for your classroom or office. The mailbox is made of recycled material and is also recyclable. The slot sizes for the 30-Slot Mailbox are 1.75"H x 10"W x 12.5"D and easily fit most paper sizes and notebooks. Our mission is to empower teachers, students, and artists to be their best by providing them superior educational and art products. Pacon is dedicated to providing sustainably sourced paper and is certified by the Sustainable Forestry Initiative.