Woodblock printing on textiles is the process of printing patterns on textiles, usually of linen, cotton, or silk, by means of incised wooden blocks. It is the earliest, simplest, and slowest of all methods of textile printing. Block printing by hand is a slow process. Nowadays in addition to the engraved block, a printing table and colour sieve are required. The table consists of a stout framework of wood or iron supporting a thick slab of stone varying in size according to the width of cloth to be printed. Over the stone tabletop, a thick piece of woolen printer blanket is tightly stretched to supply the elasticity necessary to give the block every chance of making a good impression on the cloth. The printer commences by drawing a length of cloth, from the roll, over the table, and marks it with a piece of coloured chalk and a ruler to indicate where the first impression of the block is to be applied.