Are you bothered by the fact that wrapping cable wire connection with electric tape which is ugly and not safe enough? Now the good news is that our heat shrink tubing can avoid these troubles and give you a tidy connection. It is 2:1 heat shrink ratio, and only use a lighter if the tube is small or hair dryer for large one. Also Includes handy plastic container for easy storage. Features - ColorBlack - Material: PE. - Size: Approx. 17 * 10 * 2.3 cm/ 6.7 * 3.94 * 0.9 inch (L*W*H). - Minimum Temperature of Retraction: ≥70 ° C. - Full Temperature of Retraction: ≥110 ° C. - Operating temperature: -55 ° C to + 125 ° C. - Traction resistance: 10.4 MPa. - Strength: 15 KV/ mm. - Specific manufacturing: ISO9001. - Flammability: . - Approvals: Approved. - Supplied format (round or flat): the product is supplied flat. - in a plastic container for easy organization and storage. - Heat activated adhesive lining seals connection providing impenetrable seal to salt water and other liquids while providing strain relief. - Great for marine, auto, and electrical applications. - Note: Please allow 1-2mm differs due to manual measurement. Package list: 1 * Pack of 150pcs Adhesive Marine Heat Shrink Kit 2:1 Shrink Ratio with Storage Case