1. 1.2mm steel pin with indented ends to prevent the pin from falling out 2. Fiber optic splicing and protection element consisting of cross-linked polyolefin, hot melt tube and reinforced stainless steel wire 3. No influence on the optical conductivity of the fibre 4. Protects the splice point and improves mechanical strength 5. Easy to handle, reducing the risk of damage to the fibre during installation 6. Transparent sleeve, making it possible to see the splice condition at a glance 7. Sealed construction provides good resistance to temperature and humidity 8. Durable and oxidation resistant 9. Application: fibre splice area 10. Operating temperature: -55 to 105 degrees Celsius 11. Shrinkage temperature range: 90-120 degrees Celsius 12. Material: stainless steel needle + PE 13. Inner and outer diameter: 3.8x1.3mm