Short Circuit Prevention: The hot end integrates a heater rod and thermistor, whose wire connectors are typically located above the heat sink

The silicone sleeve protects these metal connectors from accidental contact with the metal structure of the print head or other cables, potentially causing a short circuit
Dust and Dirt Prevention: The printing process may be subject to dust, fine printing debris, and accidental fingerprints
The silicone sleeve provides a simple physical barrier to keep critical electrical connections clean

Specifications
Due to different batches, there may be differences in product appearance and printed text, which not affect use
Color: Black
Material: Silicone

Package Contents:
5*Hotend heat insulation pad