HellermannTyton Heat Shrink Tube, Black 4.8mm Sleeve Dia. x 5m Length 2:1 Ratio, TF21 Series, Shrunk Diameter: 2.4mm, Material: Cross Linked Polyolefin, Flame Retardant: Yes, MPN: 309-10480 TF21-4.8/2.4-PO-X-BK