Product Specifications: Brand: ATCC Model: 54171-3/4 Product Type: Octagonal Enclosure Size: 4" Depth: 2-1/8" Opening: 3/4" Material: Iron Product Features: Made of corrosion and rust resistant iron. The octagonal design provides additional stability and increases the structural strength of the enclosure. Provides excellent protection for wires and cables from mechanical and environmental damage such as impact and stress. Easily installed in various locations such as walls or ceilings. Application: Used to provide a secure enclosure for electrical wires and cables. Used in industrial environments to protect wires from mechanical and environmental factors.