NSPA HST206B, Flex Dual Wall Heat Shrink, 3/8″ ID, Black, 25-PackCondition:* New,Surplus Stock. No OEM Packaging. Additional Notes:* Insulation Material: Polyolefin* Adhesive-Lined: Yes* Shrink Ratio: 3:01* Insulation Color: Black* Minimum Expanded ID: 3/8″* Wire Range: 12-8 Gauge* Length: 6″* Tubing Shrink Temperature: 121C (250F)* Operating Temperature: -55C To 110C (-67F To 230F)* UL Listed/ Recognized: YesNSPA HST206B