MARKER TUBE,heat shrinkable marker tube MADE OF SOFT PVC, OILPROOF,CHEMIC ERODE RESISTANT,GOOD TENACITY TRANSPARENCE MARKER TUBE,heat shrinkable marker tubeMADE OF SOFT PVC, OILPROOF,CHEMIC ERODE RESISTANT,GOOD TENACITY ... AGING,THIN TOOTH-LIKE THINGS, BETTER TO HOLD THE WIRES MARKER TUBE,heat shrinkable marker tube