Pads have a cloth-bound cover and heavy-weight back to give your notes extra protection and stability. These engineering pads feature smooth, heavy-weight 20 lb paper for an extra writing experience with any writing instrument. • Part of the Signature Collection and an upgraded version of Engineering Notepads. • Heavyweight, smooth paper to reduce bleed-through. • Perforated for easy removal. • 5 x 5 printed back enclosed grid and frame front 0.5" margin. • Covered for extra durability. Signature Collection engineering pads have a cloth-bound cover and heavy-weight back to give your notes extra protection and stability. Signature Collection engineering pads feature smooth, heavy-weight 20 lb paper for an extra writing experience with any writing instrument. Pocket Sized: No; Pad-Binding Type: Glued/Gummed; Taped; Pad-Binding Edge: Top; Number of Subjects/Sections: 1.