Silicone socks for K1 hotend, 5pcs heat insulation case cover for K1/K1Max ceramic heating block kit in red As you can see, our silicone sock has a very good edge treatment,the outer wall is very smooth and the edges are perfect<br> Only Compatible with for K1 , K1 Max, 3 V3 KE and CR10 SE 3D Printer, Cannot fit for other types 3D Printers, please know before ordering<br> Made from high temperature Silicone material , can work for long time at 300C degree. But PLEASE NOTE if your printing temperature is over 300C degree, please remove the silicone cover before starting printing.<br> High Precise size, It can be assembled more perfectly and is very beautiful.<br> Material: Silica gel<br> colour: orange red<br> Package Contents:<br> 5 x silicone socks<br> Only the above package content, other products are not included.<br> 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.