Ancor Heat Shrink Butt Connector Pack, Assorted - 250 Pcs (309000)Ancor Heat Shrink Butt Connector Pack, Assorted 250 Pcs Heat activated adhesive built into the sleeve of the heat shrink tubing Shrinks to form a water tight seal and ultimate vibration and strain relief Tinned for corrosion resistance Pure copper for maximum current flow Brazed seam for maximum strength UL Listed and CSA Recognized Shrinks at 275 F 135 C Reusable Jar is clear for easy identification and has a flip lid for ease of use! Includes (50)