How to use: 1. Clean the dents with a clean damp cloth. 2. Put the glue stick into the glue gun, pull the trigger to make the glue stick enter the glue gun, turn on the power and warm up for 5 minutes. 3. Use a suitable gasket. Larger dents require larger shims. (Note: the larger the gasket, the greater the extraction force). 4. Pull the trigger and apply the extruded glue to the extrusion gasket (the 4 holes of the gasket must be coated with hot melt). 5. Use hot melt adhesive to quickly place the tab in the center of the dent and gently press until the glue hardens and sticks (let the glue cool for about 8 minutes. The cooling time should be less than 10 minutes and should be slightly shorter in winter). 6. Align the T-shaped repairer and pull the washer with hot melt adhesive and pull the slide back to pull the dent. 7. Check with the circuit board. If the dent is still there, gently tap with a flat hammer or pen. 8. Clean the repaired area with a clean, damp cloth. Wipe off water, dust or other impurities on the item before applying it. Please wait patiently until the glue solidifies after 24 hours, instead of shaking the glued items immediately. Do not touch the skin with hot melt adhesive to avoid burns. If you accidentally touch the skin, rinse the skin with cold water immediately and seek medical attention immediately. (Do not peel off the hot particles from the skin during this process). Specifications: Size: 270 x 11 mm. Note: The data are all measured manually, please allow an error of 1-3 cm. Due to differences in light and display, there may be some color differences, please refer to the actual item received.