【How to use?】First, select the appropriate solid copper tip to replace the iron tip. Then remove the locking screws securing the tip and remove the attached tip.Next, install the new tip and tighten the locking screw. Preheaing the plastic welder 3-5 minutes before use will produce smoke,I which is a normal phenomenon. Notice: Please disconnect from the power supply when not in use 【What's the Feature of the Plastic Welder?】The design of plastic handle insulation is not easy to deform and scald your hands. The thermal hole design make the plastic more durable, it will not be deformed due to high temperature, and metal pipes will not be severely aged due to heat 【Where can you use it?】The black and white plastic rods can be used to repair car bumper, dashboard, kayak, canoe, fuel tank, plastic furniture, kids Riding Toys, and so on 【Package Contain】 You will get 1 Plastic Welder, 1 Scrub sponge, 1 Metal Brush, 1 Metal Stand, 1 Stainless Steel Mesh, 1 Screwdriver, 1 instruction, 2 Solid Copper Tips, 20 Black Plastic Rods and 20 White Plastic Rods 【How about After-Service?】 Welcome to buy our plastic welder kit. If you have any problems with our product, you can contact us at any time and we will help you solve the problem, Weight: 0.551155655 pounds, Manufacturer: BIAJIYA