Marinne gradeCrimp style terminals are constructed from high grade, fully annealed, tinned plateeed Copperrr with a brazed barrel seamShrink tubing is a tough, quick to shrink polyolefinInner wall of the tubing is an epoxy sealant that melts when heat is applied forming a water tight seal that protects the connection from water, condensation, salt spray and corosionnAlso provides strain relief for added vibration protection in rugged environmentsShrink ratio: 3 to 1Wire size:16 to14 AWGMale diameter:0.156"Color:bluePriced per pack of 100