Features: 1.PREMIUM MATERIAL: These sawtooth picture hangers are made from quality iron material which is sturdy and durable. 2.EXTRA DURABILITY: With nickle plated iron, these sawtooth picture hangers has rust resistance and strong holding. 3.FUNCTION: These sawtooth picture hangers are suitable for hanging photo frame, clothes and tools in cars and ships. 4.SEAMLESS: The screws included in the package will not damage your wall, creating a clean and tidy environment. 5.EASY TO USE: Sawtooth hangers is secured with double screws, providing more convenient installation. Specification: Item Type: Sawtooth Picture Hangers_x000D_ Material: Iron_x000D_ Surface Treatment: Nickel Plating_x000D_ Installation Location: It Can Be Used for Tools, Photo Frames, Clocks and Other Items That Need to Be Hung on Ships or Rvs_x000D_ Scope of Application: RV, Ships, Large Trucks, Etc._x000D_ Serrated Product Aperture: Approx. 4mm / 0.15in Note: (1) the product is a small object, do not let children play with it. _x000D_ (2) the surface of the product is sharpened, so it is recommended to use it under gloves.