Features: new high quality Made of high-quality materials for durability Fast, efficient, -step wiring No crimping required Polyolefin tube on the outside, hot melt glue on the inside Transparent heat-shrinkable sleeves allow for precise visual inspection greater pulling force Fully waterproof sealed to prevent for marine, automotive, motorcycle and other outdoor applications. Product parameters: Quantity: 50pcs, 250pcs, 400pcs, 500pcs, 600pcs, 700pcs, 800pcs (optional) Insulation: PE Plating: Tin Terminal Body: Tin Ring Color: red, blue, white, yellow, black Type and size: White shrink connector: 1.5 mm diameter, cable cross section 0.25-0.34mm² Red shrink connector: 2.7 mm diameter, cable cross section 0.5-1.0 mm² Blue shrink connector: 4.5 mm diameter, cable cross section 1.5-2.5 mm² Yellow shrink connector: diameter 6.0 mm, cable cross-section 4.0-6.0 mm² Heat shrink tubing: Material: Polyethylene Colour: Black Package includes: (optional) Listing 1: 50 * Heat Shrink Solder Socket Kit Listing 2: 250 * Heat Shrink Solder Socket Kit Listing 3: 400 * Heat Shrink Solder Socket Kit Listing 4: 500 * Heat Shrink Solder Socket Kit Listing 5: 600 * Heat Shrink Solder Socket Kit Listing 6: 700 * Heat Shrink Solder Socket Kit Listing 7: 800 * Heat Shrink Solder Socket Kit Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. [EFFICIENT INSTALLATION]: Experience quick and easy wiring with our one-step installation process. No crimping required, saving you time and effort while ensuring a secure connection. The transparent heat-shrinkable sleeves allow for precise visual inspection during installation. [Sustainable CONSTRUCTION]: Crafted from high-quality materials, these connectors offer exceptional durability. The polyolefin tube exterior combined with hot melt glue interior provides a strong, long-lasting seal that can withstand various environmental conditions. [WATERPROOF PROTECTION]: Ideal for marine, automotive, motorcycle, and outdoor applications, these connectors create a fully waterproof seal. This feature helps protect your electrical connections from moisture, corrosion, and other potential hazards. [MULTIPLE QUANTITY OPTIONS]: Select the package that best suits your project needs. Available in sets of 50, 250, 400, 500, 600, 700, or 800 pieces, ensuring you have the right amount of connectors for any job, big or small.