Features:
An easy one step connection of wires, soldered, insulated and sealed.   
Can be ideal use in marine and automobile applications.
Polyolefin tube in outside and hot melt adhesive in inside.    
Solder and seal and with advanced waterproof function.    
Polyolefin heat shrink butt connectors improved pullout strength.     
Provides seal, strain relief, cable check, and insulation.  

Specification:
Material: Plastic
Color,Red,Blue,Yellow,White
Quantity:50pcs/Bag

Including:  
50pcs Heat Shrink Butt Connector(20pcs Red,15pcs Blue,5pcs Yellow,10pcs White)

Notes:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.