Features: Adopting hardened steel stainless steel material, the wear resistance is increased by 50%, which is suitable for long time use to ensure long use and stable print quality. Precise hot end compatibility: for detachable hot end, it is compatibles many mainstream 3D printers and supports high precise printing up to 0.2mm. Simple thread connection design reduces the nozzle replacement process to 30seconds without the need for any specialised tools. Applicable to a wide ranging of printing materials, including ABS and more meet the needs of different projects. Nozzle design meets environmental standards, harmless, safe and reliable, to ensure the users health in use. Specifications: Name：Detachable Nozzle Hot End Material: Metal Size: about 49x17.5x21mm/1.93x0.69x0.83in for lab Mini 3D printer Heating block material: coppered Nozzle material: stainless steel/hard steel Specification:0.2/0.4/0.6/0.8mm Package Includes: 1Set Detachable nozzle hot end note: Please allow 1-2cm errors due to manual measurement. Pictures may not reflect actual color due to different monitors.