Usage: A perfect combination for sewing, widely used in quilting, sewing or hand-making, when you add these rulers to your quilting supplies, you will get better results in a very short time. This ruler is great, whether you are a professional or an amateur, this ruler can help you complete more designs. Ironing Ruler: The ironing ruler adopts a special process and is made of high-temperature resistant transparent acrylic, so there is no need to worry about the iron being hot. The rounded corners of the ruler are convenient for measuring special parts, and the right angles are convenient for measuring the horizontal and vertical dimensions of the fabric. Material: This patchwork quilt ruler is made of high-quality acrylic with smooth edges and convenient to use. It is a perfect gift or tool. Square Quilting Ruler: The quilting ruler is made of durable acrylic material and is designed for quilting, sewing, measuring, drawing and crafts. Provides a clear measurement view of light or dark materials. Description: Name: Transparent Sewing Ruler Specification: 6/12 inch Material: Acrylic Color: As shown in the picture Package Contents: 1 x Sewing Ruler Only the above package content, other products are not included. Note: Light reflection and different monitors may cause the color of the item in the picture to be slightly different from the actual item. The measurement allowable error is +/- 1-3cm.