What You Get: 4PCS Plastic Welding Replacement Tips, including 1x 16mm small triangular tip, 1x 20mm large triangular tip, 1x 20mm large triangular tip with hole, and 1x iron tip. Compatibility: The mounting rod diameter is 0.22 inch (5.6 mm). Compatible with common plastic welding tools available on the market. Not suitable for welding guns with double brass tubes. Refer to the fifth image for installation instructions. Wide Application: These tips generate high heat and melt plastic quickly. Ideal for repairing and smoothing plastic bumpers, casings, brackets, and similar materials. Best used with plastic welding rods, wire mesh, and related accessories. Replacement Accessory: A practical set for expanding your selection of smoothing tips or replacing worn-out ones. An essential accessory for plastic welding tasks. Note: Product design may be updated periodically. Actual product may vary slightly in appearance or color. Please consider this before placing your order if specific color or appearance is required. Color: As shown in photo Material: Metal Package Contents: 1x Soldering Iron Tips Set Please note: Other items not included. Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.