An embroidery block is a small block used to hand-print a design outline onto a ground cloth. It is normally c. 3-5 cm in size and can come in a variety of shapes, such as squares or triangles. The required design may be (a) carved into the block, (b) formed by metal strips, (c) engraved onto a metal plate and then fastened to a wooden base, (d) rubber moulded, or (e) made by some other technique.