Provides Ease-of-Use for Tasks that Could be Extremely Tedious if Done by HandThe horizontal red line matches the needle drop so you can line up the start of each row.The small red mark denotes the center of the design for lining up with the marking for the first row.Fits All Low Shank Snap-On Singer* (Some Singers Require Low Shank Adaptor), Brother, Babylock, Euro-Pro, White, New Home, Simplicity, Border Guide Sewing Machine Presser Foot - Fits All Low Shank Snap-On Singer, Brother, Babylock, Euro-Pro, Simplicity, White, Janome, Kenmore, Juki, New HomeMaterial: plasticSize: 47*25*1.5mmColor: red + transparent colorPackage Contents: 1x Sewing Machine Presser FootNote: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.