Apply the clapper (the striker) immediately after ironing and press down firmly for 10-15 seconds. The clapper then absorbs the steam and sets your fold, seam and squares. Use this quilters clapper tool to on your granny squares, to squeeze perfect wrinkles, smooth out bulky surfaces and create perfectly pointed collar edges. The flat bottom (the striker) is used to create sharp, flat-pressed seams and wrinkles, making the Milward clapper a must have tool for any quilter, tailor, dressmaker or sewing. Made from natural and durable beech wood. The smooth and ergonomic handle make the clapper comfortable to use. Dimensions: (w/d/h) 23 x 23 x 3.5cm