1.The interference fit between the heat insulation sheet and the heating block increases at the bottom of the heat insulation sheet, completely eliminating the phenomenon of falling off and reducing the possibility of material leakage. The nozzle is connected through threads, and the nozzle is connected to the bottom of the heat insulation box. Part of is in contact,which completely solves the problem of shedding and reduces the possibility of material leakage. 2.Mainly suitable for CR10, CR10S, 3, 3 V2, 3 Pro, 2.4 printer models. 3.Small size, light weight, aluminum radiator, integrated throat heating block and replaceable threaded nozzle 4.overall maximum printing temperature 300°C Print flow rate up to 33mm:/s using E3 2.0 hot end 5.The inner wall of throat nozzle is smooth, reducing plug and improving printing accuracy Supports printing of PLA, ABS, PETG, TPU, PP, PC, , PEI and other consumables. Support printing filament diameter: 1.75MM Colour:As Shown Material:plastic+metal Package Contents: 1 x 3D printer accessories 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.