specification:<br />quantity: 100pcs<br />blue connector: suits cable/ wire sizes  1.5-2.5mm2 16-14 awg<br /><br />features：<br />100%  and high quality.<br />guaranteed to hold the strong crimps.<br />standard crimp and then seal heat shrink butt connectors.<br />allows visual inspection， prevents corrosion， and provided a waterproof seal.<br />for best results use a hot air gun until it reduces in size and the adhesive flows， filling gaps within the terminal.<br /> <br />package included: <br />1x pack of 100 heat shrink butt wire crimp connector