DURABLE MATERIAL - Made of metal material, these curtain rings are durable for use, rust-proof and can be used in humid places. Electroplating treatment, wear-resistant and bright appearance. SMOOTH GLIDE - Surface without burrs, these metal curtain rings glide smoothly on your curtain rods. The drapery rings pull smoothly without jamming, convenient to use. EASY INSTALLATION - Curtain rings go through the curtain rod, and curtain hooks into the small ring, then the curtain slides easily. WHAT YOU GET - 24 Pcs x Curtain Rings. Different kinds of styles to satisfy your demands. Please confirm the size before purchasing them. Note: Fit Curtain Rod OD: smaller than the inner diameter of the curtain ring, 5-15mm / 0.2-0.59inch is the best. WIDE APPLICATION - Good for holding shower curtains, window curtains and french window curtains. Widely used in bedrooms, bathroom, living room, office, etc.