1.Efficient Heating and Uniform Heating For Revo E-3-D ceramic heater has a more uniform heating effect than traditional heater cartridges. It is quickly reach to 200C from room temperature. 2.All-metal Heatbreak Print Temperature up to 300 For Revo all-metal heatbreak supports 300 printing, making it for various filaments such as PLA, ABS, PETG, TPU, PP, PC, Nylon etc. 3.Toolless Nozzle Change:Easy to Install The For Revo ecosystem allows you to change nozzles in under 30seconds without tools at room temperature.Designed specifically, installing For Revo Hotend is straightforward and should take under 30 minutes. 4.The nozzle can be replaced directly at room temperature without complex tools or hottightening.Easy to install and will not leak material during use. 5.The For Revo Mini works well with For Bowden and direct-drive extrusion kits, and its lightweight construction makes it ideal for Bowden extruders. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Specifications: A: 0.4mm Nozzle throat / B: 0.25mm Nozzle throat / C: 0.8mm Nozzle throat / D: 0.6mm Nozzle throat Colour:As Shown Material:Metal Package Contents: 1 x printer nozzle extrusion 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.