Throat performance: supports high temperature printing (≤300°C) alloy can reduce the heat of the heating block Upward conduction, pure copper has excellent thermal conductivity, which can heat dissipation and improve overall performance. Product name: K1 ceramic heating head hot end accessories Nozzle specifications: 0.4mm Ceramic heating: 60W Supported filament diameter: 1.75mm Compatible models: K1, K1 Max Compatible materials: PLA, ABS, PETG, TPU, PP, PC, nylon, etc. Due to different batches, the appearance, color and printed words of the product , which not affect the use. Material: Brass + alloy colour: As Shown Package Contents: 1 x Hotend Kit 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.