That 2 mm or 2.5 mm wire splice is about to work loose and you've got five more to go before the day's out. Slide this 2.5 mm clear heatshrink over the joint, a quick flick of the lighter or a ten-second hit with the hairdryer, and it's sealed at half its original diameter. Clear, so you can still see the wire and confirm the connection without peeling it back. The polyolefin stays flexible in cold storage or a hot engine bay — no cracking, no brittleness. Flame-resistant as standard
| brand | Jaycar |
| colour | Clear |
| inner_diameter_mm | 2.5 |
| shrink_ratio | 50% |
| material | Flexible flame-resistant polyolefin |
| shrink_method | Heatgun, hairdryer, gas burner, or match |