Heavy Duty Silver Zinc Eye Bolt Spring Hook 4-Piece Set for Dog Belts and Key Clips This heavy-duty silver zinc eye bolt spring hook set is made from durable cast iron with nickel plating finish. Designed for dog belts, key clips, and hanging applications, it features a rotating spring hook for secure fastening. High-quality, customizable, and suitable for general industry and pet accessories. Key Features: Material: Cast Iron / Zinc Hook Type: Eye Bolt / Spring / Rotary Finish: Nickel Plated Feature: Heavy-Duty, High-Quality, Customizable Application: Dog Belts, Key Clips, Hanging, General Industry Color: Silver Packing: Plastic Bag + Carton