Features 1、Nonslip Bottom Surface: The clear acrylic ruler has a special nonslip bottom surface that helps keep the ruler stationary while measuring or cutting. 2、Acrylic Material: Magnetic seam guide is made of high quality acrylic material, which is durable and easy to use. 3、Bright Yellow: Bright yellow allows you to see numbers and letters on the page, and with the yellow math ruler, you can easily measure an object. 4、Easy Cut: The Seam allowance ruler can easily cut any color fabric, see exactly what you're doing and save you time. 5、Scope of Application: Seam guide is a practical measurement tool for artists, designers, architects, engineers, students, etc. It is suitable for classrooms, schools, offices, homes, etc. Specification Item Type: Magnetic Seam Guide Material: Acrylic Product Specification: 1PCS Product Use: Household Scope of Application: Most Scenarios Size: Approx. 14 x 6.2cm / 5.5 x 2.4in Package List 1 x Magnetic Seam Guide