Easy Identification: Multicolor coded connector tubing.Polyolefin heat shrink butt connectors improve Pullout Strength. High-quality wire connectors in Seal, Strain Relief, Cable Check and Insulation. Melted Solder ensures wires Strongly Connected and avoids wires slipping out from the terminal. Fast and Easy Process.Simply position the stripped wires into the solder sleeve and apply heat to finish the connection. The connectors can be used on your auto, boat, home, trailer, RV or motorcycle wiring project, these heat shrink butt terminals will help you create secure and durable connections every time. It is also a great gift for your father or whom like DIY repair project. You will never regret that prepare one for sudden repair maintenance. size: 27.41 x 18.01 x 4.39 cm Material: Polyolefin colour: As shown Package Contents: 1 x Heat shrinkable terminal sets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.