Rolodex style telephone # index has a black plastic base with mounting screw holes on the bottom and is 4 1/8" x 4 1/2". The single bar paper holder is 1 1/4" wide. There are index dividers based on 3 letters each and 90 phone & address pages. These 2 sided, lined paper pages are 4" across at the base & 3 3/4" at the top. Blister carded w/UPC code.