HellermannTyton Straight Cable Boot Black, Fluid Resistant Elastomer, 31mm, Adhesive Lined: No, Shrink Temperature: +135°C, Minimum Operating Temperature: -75°C, Maximum Operating Temperature: +150°C, Shrunk Diameter Primary: 18mm, Shrunk Diameter Secondary: 7mm, MPN: 401-55880 155-42-G-PO-X-BK