Low-profile vest buckle sized at 21 mm inner width in a durable Silver finish. Designed for the back-waist adjusters on tailored vests and waistcoats, but just as helpful on corsets, aprons, costumes and structured bag straps. The two-bar design feeds strap ends smoothly and holds tension reliably for repeat wear. Pair with matching sliders or D-rings for coordinated hardware on garments and accessories. Installs with simple stitching—no special tools required—and maintains a polished, store-bought look on finished projects. Match your strap or elastic to the inner dimension for best results.