Features: For Phaetus Dragon 3D Printers hotend insulated and protect silicone socks. Prevent clogs and maintain heat insulation.Ensure consistent temperature for improved printing result. Silicone component, these cover offer longlasting performances and a perfect for various 3D printers. Perfect for projects, prototyping, and small scale production, these cover provide optimaled protections for your hotend. Enhances extrusion and overall print quality. For Phaetus Dragon 3D printers, offering optimaled heat insulation and hotend protections. Specifications: Component: Silicone Size：about 5x2.50cm/1.97x0.98in Quantity: 3PCS For Phaetus Dragon 3D Printers Package Includes: 3PCS Silicone Sleeves note: There might be a bit color distortions due to different computer resolution There might be size errors due to different computer resolution