Operation steps: 1. Turn off the water source, clean the water stains around the leakage point, and use sandpaper to polish the damaged area until it is flat. Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! 2. Install the mold head: Select a 4-point specification mold head and fix it to the hot melt heating plate (screws need to be provided)., Manufacturer: Akfldms