Features:The template is made of high quality soft plastic, light weight and durable. Made of transparent colored plastic for easy positioning. Ideal for manual detailed description of soft curves with several radii. It contains many interesting flat graphics, suitable for drawing images, sewing needlework and more. This will be a good choice for gifts. Enjoy your shopping time and have a great day. Suitable for clothing design, design painting, clothing plate making ruler. A curve board is a tool (figure) used to draw non-circular curves with different radii of curvature. When drawing a non-circular curve, it can be drawn with a curved plate or a flexible curved ruler made of a plastic material and a flexible metal core strip. 3 ruler to make double-sided groove, not lined with paper. Easy to use both sides of the double-sided ink tank evenly without flash. Specification:Material:PlasticPackage List:3 x RulerUsers Manual:(1) When drawing, in order to ensure that the lines are smooth and accurate, firstly, according to the corresponding drawing method, a sufficient number of points on the curve to be drawn should be determined, and then the relevant points are connected by the curved board.(2) The specific usage and steps are: 1 Make some points on the curve according to the corresponding drawing method; 2 use pencils to connect the points in turn to form a curve; 3 Find the line segment whose curve plate matches the curve and draw the line segment; 4 Find the next paragraph according to the same method. A small section should be left between the adjacent curve segments as the transition. That is, there should be a small segment coincident with the drawn curve segment to ensure that the curve drawn last is round and smooth.