The product is a 4-foot pre-cut black latex rubber tubing with an inner diameter of 5/16 inch, a wall thickness of 1/16 inch, and an outer diameter of 7/16 inch. This type of tubing is commonly used in various industrial applications, such as metalworking and manufacturing, for tasks that require precise measurements and a flexible material like rubber. Its size and thickness make it suitable for creating custom components or connections in machinery and equipment.