3D Printer Nozzle Cleaning Kit MK8 Nozzle 0.4mm Stainless Steel Cleaning Needle 1. This comprehensive 3D printer maintenance set includes two versatile options: --22-in-1 Kit: 10×0.4mm MK8 nozzles + 10×0.4mm cleaning needles + 1×tweezers + 1×storage case --12-in-1 Kit: 10×0.4mm cleaning needles + 1×tweezers + 1×storage case Ideal for routine nozzle upkeep, clog removal, and seamless nozzle replacement to ensure consistent, high-quality prints. 2. High-Strength Precision Cleaning Needles: Reinforced stainless steel body combines rigidity and flexibility, preventing breakage during cleaning. Specially designed 0.4mm diameter matches standard nozzle size for thorough yet gentle cleaning. 3. Anti-slip tweezers enable safe handling of hot nozzles during replacement. 4. Rugged transparent case keeps tools dust-free and easily accessible. 5. Material: 304 stainless steel (needles), brass (nozzles) 6. Warning: Always recalibrate nozzle height after replacement. Keep away from children.