item specifics: <br /><br />    quantity:100pcs (40red + 40blue + 20yellow)<br /><br /><br />size:<br /><br />    red connector:  suits cable/ wire sizes  0.5-1.5mm2 18-22 ga<br />    blue connector: suits cable/ wire sizes  1.5-2.5mm2 16-14 ga<br />    yellow connector: suits cable/ wire sizes 4.0-6.0mm2 12-10 ga<br /><br />features <br /><br />    100%  and high quality<br />    standard crimp and then seal heat shrink butt connectors<br />    guaranteed to hold the strong crimps<br />    dual-walled design｣ｬ polyolefin tubing in outside and hot melt adhesive in inside<br />    allows visual inspection｣ｬ prevents corrosion｣ｬ and provided a waterproof seal<br />    for best results use a hot air gun until it reduces in size and the adhesive flows｣ｬ filling gaps within the terminal<br /><br />package included: <br /><br />    1x  pack of 100 heat shrink butt wire crimp connector