https://www.jewson.co.uk/p/sam-52-windowboard-25-x-194mm-5-49m-primed-fsc-F522519C
SAM52 MDF 25 x 194 Windowboard 3.6m Primed FSC
SAM52 Primed MDF Window Board with smooth, durable finish, ready to paint, offering a sleek, contemporary look for long-lasting window sills.
mdfxwindowboardprimedfsc