<p>A MUST FOR ANY MARINE WIRING PROJECTS:The package includes 280PCS heat shrink connectors,A crimping tool for heat shrink wire connectors(HS-8327),Great value for wiring lovers | CRIMPER TOOL:The professional jaw can quickly and easily crimping various types of heat shrink connectors. The indentation will not damage the shell during the crimp. It firmly grasps the wires. Each crimper tool is marked with red/blue/yellow for easy identification | PRECISE RATCHET STRUCTURE:According to the pressure needed to crimp products of different sizes,built-in thickened ratchet automatically adjusts to the appropriate position to ensure the safe completion of crimping with easy release of the handle. Adjustable crimp height of star wheel,to ensure the right amount of crimping force | EXTREMELY RELIABLE CRIMPING:The 3:1 heat shrink connector with adhesive lined will exude hot melt adhesive after being evenly heate,quickly shrink and adhesion to the insulation of the wire.Waterproof,Wear-resistant.Create a complete environmental seal | PERFECT COMBINATION:Using haisstronica crimper tools with wire connectors to meet the different needs of your work</p>