[Bimetallic Heat Break]: Made from two materials with different thermal conductivity, this heat break is divided into two parts. The M6 end is crafted from TC4 titanium alloy for reduced thermal conductivity, providing excellent heat insulation between the heater and the heatsink. The M6 end also features copper on the back to aid in heat dissipation and accelerate heat transfer. [Upgraded Design]: Constructed from two parts: copper and TC4 titanium. TC4 titanium minimizes upward heat conduction during localized heating, while copper is used for heat dissipation to speed up heat transfer. Features a D7mm side wall between the neck and threaded section for more stable heatsink and nozzle fixation. Two cutouts in the side wall allow for removal of the heat break from the heat block using a 6mm wrench. Offers high temperature and corrosion resistance, a smooth inner wall, and is suitable for 1.75mm consumables. Compatible with S/Pro/Vyper 3D printers. Product Name: High-Temperature Resistant M6 Threaded Titanium Alloy Red Copper Bimetallic Tube Color: Copper Material: Titanium Alloy + Red Copper Package Contents: 1 * M6 Nozzle Threaded Bimetallic Neck (Only the above package content is included. Other products are not.) Note: Light photography and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.