The soldering iron tips are compatible with MT-100 HT-1937 butane gas soldering iron kits. These tips are suitable for plastic and sponge cutting, as well as electronic component welding, offering fast conductivity. The welding tools feature iron and gold plating, providing oxidation resistance for extended durability. This soldering iron tip is easy to install and clean. Designed for convenience, it is user-friendly and portable. Color: Gold + Silver Material: Metal Package Contents: 3 x Soldering iron tips 1 x Sponge knife 1 x Plastic special knife 1 x Heating core Note: The package includes only the items listed above. Other products are not included. Note: Lighting and monitor settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.