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.