530 Pcs 2:1 Heat Shrink Tubing Tube Sleeving Wrap Cable Wire 5 Colors 8 Sizes

These 1:2 ratio heat shrink wraps are perfect to shield and

Damaged wires lead to power interruptions, and also pose serious safety hazards. Heat shrink tubing add a protective layer against abrasion, moisture and cuts to wiring.  Heat shrink tubes  are also useful for bundling wires in an electrical installation. The color-coded variety in this product help keep wires and cables organized. Each size has it’s own color making it easy to pick the the one you need for the job. A 2:1 shrink ratio means the tubing will shrink to half its diameter when the proper heat is applied. This is the most common standard, although 3:1 and 4:1 ratios also exist for specialized uses.