Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you [Compatible]Our high temperature nozzles with hotend heater block can only suitable for 3 V3 SE/ 5 S1/ 7 3D Printer. Please confirm your 3D printer model before buying. The package include 5pcs 0.4mm nozzles and Hardened Steel and 2pcs Silicone Socks. [Premium Quality]5pcs high-quality 0.4mm Hardened Steel nozzles, good abrasion resistance, heat resistance, and resistance. No burr on the orifice makes the feeding of the filament smoother and no leakage, the tight connection effectively avoid the problem of filament leakage. Engineered for speed, and support up to 600mm/s printing speed, these nozzles boast exceptional thermal conductivity, enabling faster print times while maintaining high-quality output [High-Temperature Resistance]The max temp of this hardened steel nozzle could reach 500c, suitable for 3D printing at high temperatures, It is Suitable for most FDM materials such as PLA, ABS, PETG, TPE, TPU, PC, etc., as well as high-temperature consumables such as , PEKK, PEL, PSU, PPSU, etc [ Craftsmanship]These nozzles are made of high-quality hardened tungsten steel, with a longer life use time than the normal brass nozzle. The hardness is over HRC60 can reduce the abrasion to the inner and outer of the nozzle during long-time printing, It more heat-resistant and harder than brass nozzles, which makes it accurate and compatible with more filaments [Precise Design]Each side of the 3D printer nozzle is cut by a diamond knife, so its contact is flatter. The extruder nozzle can effectively prevent the print from leaking and produce a smooth, bright and consistent printing effect. Color: Photo Color Material: hardened steel Package Contents: 5Pcs Hardened Steel Nozzles 0.4mm 2Pcs Heater Block Silicone Cover 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.