Material: This hook is made of plastic and metal, which is corrosion resistant, not easy to rust and can be used for a long time. S-shaped design: This hook is S-shaped, firm, not easily deformed and beautifully shaped. Noise Reduction: Designed for connecting to ceiling curtain tracks, these hooks feature quiet-rolling wheels that minimize noise when opening or closing curtains. Strong Load Capacity: Carefully selected load-bearing wheels ensure these hooks can handle heavy curtains, enhancing your home experience. Package includes: 50 x Rail Hooks, 50 x S Hooks. Material Plastic, Metal Colour White, Silver Size As the picture shown Type Curtain Track Gliders Kit Brand Unbranded/Generic MPN TJ4894927323900 EAN 4894927323900 .