These Watercolour Postcards by Winsor & Newton are a premium quality, mould-free and wood-free paper that is fantastic for watercolour mediums. The pad has been cold pressed inside a cylinder mould for a handcrafted quality, with a medium grain and enlarged surface area this gives you a stronger brightness to your watercolour. Alongside this the paper is acid free helping to extend the life of your paintings, it can also withstand saturation from watercolours meaning it will not wrinkle from wet washes. In total the pad holds 15 sheets of ready to use postcard sized paper (10cm x 15cm). - Acid free - Enlarged surface area giving you brighter colours - Size: 10cm x 15cm - 15 sheets