This is direct replacement compatible with creality spider hotend The inside tube of original one is made of stainless steel material to cause the cloging time and time, so we upgrade it with titanium TC4 material to improvide the inside wall smoothness so that it won't happen cloging This bimetal Heatbtreak is made from two components, Copper and Titanium TC4. Titanium TC4 reduces heat upward conduction at the heating position, and copper for heat dissipation to accelerate heat conduction. This Heatbreak is CNC machined very well, very low roughness Package: 1piece bimetal heatbreak Package: 1* Heatbreak