Durable 4‑hole buttons in a 20 mm diameter for shirts, cardigans, coats and bags. Four sew‑through holes distribute tension for a strong hold that resists rotation and heavy wear. Pack of 3 covers typical repairs or coordinated accents. Low‑profile shape sits flat against fabric to prevent snagging. Suitable for hand or machine stitching using standard thread. Suitable for hand or machine sewing with standard thread.