Strathmore 400 Marker Pad is a smooth, heavyweight, opaque, marker paper for finished art. Silky smooth surface aids blending and supports vibrant colour and subtle hues. Bleed and feather resistant. Quality/Recommended: Recommended for professional artists and art students. Weight: 190gsm Acid free: Yes Made from: Wood pulp. Colour: White Ideal for: Ideal for markers and inks. Texture: Smooth Brand: Strathmore Format (cm): 22.8 x 30.4 cm (approx.), 27.9 x 35.5 cm (approx.) Format (inches): 9 x 12 inches, 11 x 14 inches Sizing: Internally sized. Mould made: Made using a Fourdrinier Machine. A technique from the 19th century, allowing constant quality of the paper.