Made of quality materials, this set of heat shrink wire connectors has a and excellent insulation effect, which can serve you well. You don't need to use the to crimp the item when using the solder seal wire connectors, save one step to do it. Convenient and practical, bring convenience to your work. Features - Color: Assorted. - Material: Polyolefin, tin. - Size: About 4.00X0.70X0.70cm/1.57X0.28X0.28inch. - Working temperature: -55 degree centigrade~125 degree centigrade. - Full shrinkage temperature: 130 degree centigrade. - Solder melting temperature: 125 degree centigrade. - Full melting temperature of solder: 150 degree centigrade. - Shrinkage ratio: 2:1. - Color-coded tubing makes it easy to identify the right size of the connector for every application. - Don't need to crimp, and the insulation tubing will shrink down, ratio: 2:1, creating a waterproof seal. - These solder seal wire connectors are commonly preferred in automotive sector as well sector. - These practical connectors can also used for vehicle, home or scientific wiring projects. - You will receive 400pcs solder seal wire connectors, which are and . Package list: 400 x Solder Seal Wire Connectors