This Winsor and Newton Wire Bound Hard Back Sketch Book contains 170gsm paper that is acid free for longevity, meaning this sketch book will last as you continue on your journey through art. Each sheet is perforated along the edge to facilitate their easy removal. Perfect for sketching with pencil, pen or ink and painting with light watercolour washes, this pad is great for all of your art and craft needs. The Wire Bound Hard Back Sketch Book has a hard back cover so you can carry it with you wherever you go, ready for when inspiration hits you. The wire binding means there is plenty of room for this sketch book to expand if you decide to experiment with texture and collage in your art.