The expandable sewing gauge button guide adjustable sewing measuring ruler can be folded and extended up to 7.7x16cm / 3x6inch This expandable sewing gauge space divider tool is perfect to use in buttonhole spacing, hooks, snaps, shirring, smocking, clothing, drapery pleats and tucks, woodworking and Package includes: expanding sewing gauge button guide equal space divider This handy sewing tool is fast and accurate to measure Before using, with hand on each end, adjust the gauge several times Lay the sewing gauge over your garment ( or craft The expanding sewing gauge is metal, which is hard and not easy to deform, rust-proof, well-polished edges, safe and comfortable to use, Manufacturer: Msioytog