✔ EASY & FAST OPERATION - No longer need to crimp, Simple 1 step process provides accurate inspection when stripped wires inserted. Shrinking ratio: 2:1 ✔ WATERPROOF & INSULATION - New design features a dual- walled design with a Polyolefin tubing exterior and heat melting adhesive interior. As heat is applied, the Polyolefin shrinks in size and the adhesive flows inside creating a waterproof seal and prevents wire corrosion. ✔ MULTIPLE APPLICATION - Perfect use from Automotive to Marine and other indoor and outdoor, wet or dry applications. As well as being compliant with relevant standards from ROHS, ISO 9001:2008, SGS, and CE standards. ✔ EASY IDENTIFICATION - Our color - coded tubing makes it easy and fast to identify the right size of connector. By measuring your wire, it is easy to determine the correct size by the colour of the band. Yellow (A.W.G.:12-10), Blue (A.W.G.:16-14), Red (A.W.G.:22-18), White (A.W.G.:26-24). ✔ HIGHEST QUALITY & CUSTOMER COMMITMENT - We make sure to have the best quality products on the market. If for any reason you are not satisfied with your purchase, please contact us. We strive on having the best customer satisfaction!