Feature:1. HIGH TEMPERATURE RESISTANT MATERIAL: The silicone sock is made of quality silicone material that can withstand 280, has good elasticity and softness2. EFFECTIVE PROTECTING: The hotend silicone sock set not only effectively insulates the body to prevent accidental touch, but also protects the heating block and nozzle to extend the life of the heating block3. EASY TO USE: The silicone sock is flexible, possess high accuracy, easy to install, not easy to fall off, and can effectively keep the heating block tidy after installation4. COMPATIBLE PRINTERS: Hotend silicone sock is compatible with for Kobra 3 or for Kobra 3 Combo, please confirm your 3D printer model before ordering5. PACKAGE INCLUDES: Contain a total of 3 pack heating block silicone socks for 3D printer, provide great convenience for your printing, useful and practicalSpecification:Item Type: Hotend Silicone SockMaterial: Silicone.Package List:3 x Hotend Silicone Sock