Package contents: you will receive 10 pieces of stainless steel nozzle cleaning pins, 2 copper wire cleaning brush, 2 pieces of tweezers in 2 different styles, non-magnetic curve precision tweezers are ideal for nozzle maintenance and cleaning surplus consumablesMaterial: High quality stainless steel, the pin tip is smooth and sharp with high strength and toughness, suitable for mild maintenance of nozzle and hard to clean places like the feed gearsFunction: 3D printer nozzle cleaning kit is perfect for removing the blockage with high precision and is also suitable for the general maintenance of the radiatorCompatibility: These 3D printer nozzle cleaner are compatible with most popular 3D printers, fit most 3D printers nozzlesUses: 1. Before use the 3D printer cleaning kit, it is recommended to heat the nozzle to 200 degrees or above (pay attention to prevent scalding); 2. Insert and remove the cleaning steel pin from the discharge port; 3. Repeat the previous step until the printer discharges normally