Simply make caulking easier by fixing the caulking nozzle!Main Features[Caulking Nozzle Fixing] Ideal to restore the look of tile grout lines, not easy to deviate, no longer afraid of caulking nozzle slant out of the gap when caulking, saving time and caulking materials.[Wide Application]The sealant assistant can be used for kitchen, bathroom, tank, door, window, kitchen, sink joint filling finishing, make smooth and straight caulking.[Easy To Use] Compact size and lightweight, simple installation, twist the knob to lock it. No need to practic