Stratified cuboidal epithelium is a type of tissue composed of multiple layers of cube-shaped cells. It primarily serves protective functions and is found in specific areas of the body, such as the ducts of sweat glands, salivary glands, and mammary glands. This epithelium helps to prevent the passage of substances and provides structural support. The main characteristic of stratified cuboidal epithelium is its layered structure, which enhances its durability and protective capabilities. Each layer of cells contributes to the overall strength of the tissue, making it effective in areas that require additional protection against mechanical stress and abrasion.