These colourful stable bound, softback sketchbooks from Seawhite are made of 140gsm acid free cartridge paper which has been sized for extra wet strength. The paper can accept most media, anything from pencil and charcoal to acrylic paints. These sketchbooks are staple bound and feature 40 pages. - Made in the UK. - Lovely bright coloured covers - 40 pages / 20 sheets - 140gsm All-Media Cartridge Paper - Acid-free and sized for extra wet strength - Stapled binding - Colour: Grey