HellermannTyton Heat Shrink Tubing, Black 19.1mm Sleeve Dia. x 4m Length 3:1 Ratio, HIS-3 Series
1mm Sleeve Dia. x 4m Length 3:1 Ratio, HIS-3 Series, Shrunk Diameter: 6mm, Adhesive Lined: No, Material: Polyolefin Cross Linked (POX), Operating Temperature Range: -55 → +135 °C, Flame Retardant: Yes, Standards Met: RoHS Compliant, SA, UL, UL Listed, MPN: 308-31800 HIS-3-18/6-PO-X-BK.HellermannTyton Heat Shrink Tubing, Black 19.