These one-subject, wire-bound notebooks are perfect for focusing on a single project and note-taking. Smooth, white, 15 lb. writing paper is college-ruled with a red margin line. Ends of the tin spiral wire are coil-locked for snag-proof performance. Covers are printed on a bright board and come in assorted colors. Each 8-1/2" x 11" book contains 100 sheets of paper and is three-hole punched along the 11" binding edge so it can easily fit inside letter-size, three-ring binders. Sheets are not perforated.