HellermannTyton Heat Shrink Tube, Black 19.1mm Sleeve Dia. x 5m Length 2:1 Ratio, TF21 Series, Shrunk Diameter: 9.5mm, Material: Cross Linked Polyolefin, Flame Retardant: Yes, MPN: 309-11900 TF21-19.1/9.5-PO-X-BK