Expendable Sleeve is a protective covering or liner designed for single-use or short-term applications, often used to safeguard equipment, tools, or components during manufacturing, transportation, or storage. These sleeves are typically made from materials like plastic, paper, or fabric, and are discarded after use. They are commonly employed in industries such as aerospace, automotive, and construction to prevent damage, contamination, or wear. For example, expendable sleeves may be used to protect hydraulic rods, shafts, or precision machinery during shipping or assembly. Their disposable nature ensures cleanliness and efficiency, reducing the need for cleaning or maintenance. However, their single-use design can raise environmental concerns, prompting a shift toward reusable or eco-friendly alternatives in some applications.