To keep your boat running smoothly and efficiently all season long, we provide a wide range of boating accessories. Browse from the wide range of products and choose the right boat accessories depending on your needs, preferences and budget.. Features No.12-10 Ring Terminal for Heat-Shrink; Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC; Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief; Nylon insulator, preferred by experts, for Marine Grade resistance to sunlight, water, oil, chemicals; UL Listed and CSA Recognized; Highest shrink ratio - shrinks to 1/3 original size; Operating temperature range 40° C to 110° C; Shrinks to form a water tight seal and the ultimate vibration and strain relief; Tinned for corrosion resistance; Pack of 3; Specifications Size: 0.312 in.; .