All-Metal Heatbreak can easily withstand temperatures over 320℃, it can support to print any printing material without worrying clog. The Heatbreak material is made from two components, Copper and Titanium TC4, provide excellent thermal isolation between heater and cooling block. The inner wall is smooth and flat: The inside of the throat is still smooth and not affect the printing. Applicable Models:For S1/S1 Combo Color:Copper Color Material:Hardening Steel Package Contents: 3 * Throat For S1 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.