[Premium Brass Material] Crafted from high-quality brass for rust and corrosion resistance. [12-Piece Set] Includes 12 metal anchor buttons in antique bronze color, with 4 buttons measuring 20mm and 8 buttons measuring 15mm. [Versatile Application] Ideal for suits, blazers, jackets, uniforms, and sportswear. [Dual Size Options] Large buttons measure 20mm, and small buttons measure 15mm in diameter. [Compact and Portable] Small and exquisite buttons, convenient for carrying and storage.