1. Waterproof solder seal heat shrink butt connectors 2. An easy one step connection of wires, soldered, insulated and sealed 3. Polyolefin tubing in outside and hot melt adhesive in inside 4. Solder and seal and with advanced waterproof function 5. Polyolefin heat shrink butt connectors improved pullout strength 6. Provides seal, strain relief, cable check, and insulation 7. Package contents: - SST-S11 White 26-24A.W.G(0.25-0.5mm2) x 25pcs - SST-S21 Red 22-18A.W.G(0.5-1.0mm2) x 35pcs - SST-S31 Blue 16-14A.W.G(1.5-2.5mm2) x 30pcs - SST-S41 Yellow 12-10A.W.G(4.0-6.0mm2) x 10pcs
