These journals deliver high-performing paper and heavy-duty features engineered to meet the intense demands of the artist's creative process. The heavy-duty covers are durable and long-lasting, with a wire binding that is thicker and stronger than traditional wire. The binding allows the journals to lie flat and open up 360 degrees. Great for pencil, charcoal, colored pencil, pastel, marker, pen, and light mix-media techniques. Durable construction 100 lb. Acid-free The Bristol and drawing pads are great for pencil, charcoal, colored pencil, pastel, marker, pen, and light mix-media techniques. The watercolor pads are great for watercolor acrylic and collage, as well as for dry media including pencil, pen, ink and marker. The mixed media pads are great for wet and dry media including watercolor, acrylic, pen, ink, pencil, crayon, charcoal, marker and collage.