The basics The Dritz 0.5" Sew-On Hook & Eye Closures Nickel and Black Pack of 12. The benefits Perfect for creating closures on your fabric and apparel projects. The uses Use these hook & eye closures to fasten your pants, skirts, coats and other items that require fasteners. The bottom line This package features twelve 0.5-inch brass hook and eye closures of which six are nickel-plated and the other six black enamel-painted.