GRID PAD : Removable sheet, pad style sketch book for pencil, ink, charcoal, marker and watercolor painting. Great for art, design and education. PREMIUM PAPER : This Design Ideation Sketch Pad is fitted with 67 lb (147 gsm) mixed media paper. White. Semi-smooth. Removable sheets can be printed in inkjet and laser printers. The premium paper works well for combined media projects. 50 Pages for 2 sided drawing and sketching. 25 Sheets for single sided watercolor painting. Printed grid one side. SMART BINDING : Unique, reinforced 3 Phase Smart Binding finished with binding tape for a classic look and feel. HEAVY COVERS : Every Design Ideation sketchbook is equipped with heavyweight front covers and extra heavyweight back covers for when extra support is needed. HAND MADE in the USA. Each sketchpad is individually crafted by Design Ideation Studio. Design Ideation GRID PAD. Reinforced 3-Phase Smart binding. Premium paper for ink, graphite, charcoal, marker and watercolor paints. Heavy Duty. Made in the USA.