Compatible Models: This Ceramic Heating Block Kit is compatible with for K1/K1 MAX High Speed 3D Printers. Powerful ceramic heating ring: The heating block kit uses a 60W ceramic heating ring to increase the heating speed, more uniform heating, and faster heat transfer. Large Hot Melt Section and High Flow Support: The overall hot melt section is increased by 30%(The hot melt section length is 28.5mm), supporting up to 600mm/s high-speed printing. Titanium Alloy and Copper Heat Break High Temperature Resistance: All metal design, more powerful overall performance support 300C high temperature printing, compatible with more filaments such as PLA, ABS PETG, TPU, PP, PC, nylon, etc. Processing Upgrade for Better Printing: The heat break is made of titanium alloy, with an extremely thin wall thickness of 0.25 mm for excellent heat insulation performance.Nozzle inner wall roughness Less than Ra0.4, smoother feeding. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Material: Silica gel colour: As Shown Package Contents: 1 x Ceramic Heating Block Kit 5 x Brass Nozzles 0.4mm 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.