Watson watercolor paper resists water damage and has a versatile thickness and paper quality. White Watson is suitable for expressing brightness differences such as summer and winter. This whiteness is achieved by using only natural water without any additives. It is excellent with watercolors and works well with charcoals and pastels. It also retains water well, allowing for blurring, blurring, back-running, and rifting. In the case of pastels, the elasticity of cotton allows you to paint to a finish similar to oil painting. Size Catalog Number SM ( 237 x 168 ) HW-301 F2 ( 268 x 190 ) HW-302 F4 ( 343 x 252 ) HW-304 F6 ( 419 x 328 ) HW-306 F8 ( 465 x 389 ) HW-308 F10 ( 540 x 465 ) HW-310 【 SPEC 】 Surface : Type Paper - Pad Paper : Material High percentage Cotton Surface : Colour White Surface : gsm 300 gsm Paper : Format Block Pad Quantity : Sheets 15 Sheets To use with Watercolour , Pastel , Pencil Other Acid free