This notion is very helpful in controlling seam allowances. It includes a Seam Guide Setting Tool which helps place the Seam Guide exactly where it needs to be to sew consistently SCANT quarter inch seams!
1 Seam Guide Setter (4.75in x 1.25in x 1/8in) with 6 Peel & Stick Seam Guides. Reusable adhesive. Removable. Leaves no sticky residue.