Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC. Heat activated, heavy walled, adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief. Highest shrink ratio - shrinks to 13 original size. Shrinks at 257 F125 C. Operating temperature range of -40 C to 110 C. 3 LONG BY 34 DIAMETER 2 per pack California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Produc