Usage Tips:What You Get: 4PCS Plastic Welding Replacement Tips, includes 1x16mm small triangular tip, 1x20mm large triangular tip, 1x20mm large triangular tip (with hole), 1xIron Tip. Compatibility: The diameter of the mounting rod is 0.22inch/5.6mm. Suitable for common plastic welding tools on the market (not suitable for welding guns with double brass tubes). Please see the fifth picture for the installation method. Wide Application: The tip can generate high heat and melt plastic quickly. Can be used to repair and smooth plastic bumpers, plastic casings, brackets, etc. The effect is better when used with plastic welding rods, wire mesh, etc. Nice Replacement Accessory: Ideal for expanding the range of smoothing tips and replenishing old ones that have been consumed. An essential accessory. Tips: The product may be updated constantly, The Actual Product May Have Slight Differences Or Color Differences the color and appearance may be changed, please don't mind. And take a consideration before place the order if you have request for color or appearance. Colour:Photo Color Material:Metal Package Contents: 1x Soldering Iron Tips set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.