Extra‑large 30 mm sew‑on snaps for coats, capes and accessories that need a sturdy, low‑profile closure. Rust‑resistant finish and wide rims make stitching secure through multiple holes. Use where buttons would add bulk or interrupt a clean line; ideal for concealed plackets or bag flaps. For best results, test on a fabric scrap to confirm placement, stitch choice and care settings before finishing.