Material: Made of cast aluminum, providing high thermal conductivity and durability. Structure: Features a cylindrical body composed of two halves. This "split" (separable) design allows for easy removal of the molded part or clamping around a sleeve. Fasteners: Screw holes and a flanged structure are visible on the sides, used to secure the parts together. Lid and Outlets: The lid on the top has outlet nozzles, likely used for electrical connections or sensor inputs (thermocouple, etc.), and a ring (eyebolt) for easy carrying.