[Practical Design]: Our sewing rulers are professional tools for sewing, have 2 styles of half inch and a quarter inch holes distance, with 16 and 32 holes of increasing diameter to help you measure fabric and draw templates efficiently [Package Includes]: 2 styles of sewing rulers, the measurable distance length is 20cm/7 7/8 inch. Each ruler is available in inches and centimetres for your diversity needs [Acrylic Material]: Our sewing ruler is made of quality acrylic material, durable and wear-resistant, and its clear look can make your measure easy [Applicable Occasion]: The product is used to measure or draw patterns for leather and fabric, and is simple to use and can be easily applied by novices and veterans alike [Easy to Use]: The product can be used to measure the length, it can also be used to draw a circle, you need to fix the end of the ruler and then use a pen to thread into the hole to turn it around. Please tear off the film on both sides before use