Please note, this item ships from an international seller. Expected delivery is 10-15 days. Quantity: 100pcs (40 Red + 40 Blue + 20 Yellow) Size: Red Connector Size: Suits Cable / Conductor Cross Sections 22-18 Ga Blue Connector Size: Suits Cable / Conductor Cross Sections 16-14 Ga Yellow Connection Size: Suits Cable / Conductor Cross Sections 12-10 Ga Specification: Material: Made With 3m Adhesive Lined Heat Shrink Tubing Dual-walled Design, Polyamide Tubing In Outside And Hot Melt Adhesive In Inside(shrinkage 3:1) Guaranteed To Hold The Strong Crimps For Best Results Use A Hot Air Gun Until It Reduces In Size And The Adhesive Flows, Filling Gaps Within The Terminal. Standard Crimp And Then Seal Heat Shrink Butt Connectors. Standard Crimp And Then Seal Heat Shrink Butt Connectors Easy And Convenient To Use:no Crimping Required,gradually Replace The Way Of Soldering, Connect Cables More Efficiently, Safely And Quickly. How To Use:strip The Outer Surface Of The Wire About 0.75 Cm,jam 2 Wires Together In The Sleeve Under The Solder Band,and Heat The Shrink Tube. Built-in Hot Melt Adhesive,the Hot Melt Adhesive Will Melt When The Heat Shrinkable Tube Heated, So That The Wire Is Wrapped More Firmly And The Seal Is Impervious. What You Get:this Item Contain Red (40pcs): 40pcs Red 22-18 Awg,40pcs Blue 16-14 Awg,20pcs Yellow 12-10 Awg,as Well As High Quality After-sale Service.