Features: 1.It can speed up the sewing speed and keep the edges flat and even. 2.Suitable for most popular sewing machines, easy to install and use. 3.A good helper for sewing straight and round threads, bringing convenience to sewing. 4.Sewing stitch guide is made of high?quality materials, durable and long?lasting. 5.Suitable for clothing factories and individuals to do linear positioning, and also suitable for sewing beginners. specification:Item Type: Stitch Guide Set Material: Plastic Ruler Length: Approx. 7cm / 2.8in Ruler Width: Approx. 7cm / 2.8in Maximum Length of Stitch Guide: Approx. 6.5cm / 2.6in Maximum Width of Stitch Guide: Approx. 3cm / 1.2in PackageList: 1 x Ruler 2 x Stitch Guide 1 x Manual Note1. Please allow 0?1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.