large shrink ratio(4 to 1) Hermetically sealing Innovative locking mechanism Mirror like adhesive S3 (ps) Heat shinkable tubing for fiber dome closure  large shrink ratio(4 to 1)Hermetically sealingInnovative locking mechanismMirror like adhesive   Heavy wall heat shinkable polyolefin tubing; pre-coated spiral polyamide adheasive provides hermetically sealing. No adhesive at one end is specifically designed for locking the cable position during installation. Features/Benefits  High Shrink Ratio: 4:1  Pre-coated spiral polyamide adhesive provides an airtight seal  Designed for aerial and underground applications,works well in extremely cold or hot environments(-40 C to 65  C)  No adhesive at one end is specifically designed for locking the cabe position  Heavy wall provides excellent environmental protection,resistant to UV,corrosion, and mechanical damage  Thermo-chromatic paint changes color when sufficient heat has been applied, providing visual confirmation of proper installation   Temperature Range       Operating Temperature         : -55 ~ 110 °C       Shrink Temperature              : 120 °C Color:Black,  clear is available upon request    Test Equipments: