EASY TO USE: Shaking the pen several times before use, and press down the pen several times until the ink leaks out of the pen, then follow the grout lines to paint.
EXTENSIVE USAGE: The marker pen can be applied to various surfaces such as wood, metal, glass, and plastic.
FEATURES: Waterproof and quick drying, environmentally friendly and practical, and not easy to decline after washing and smearing.
INK PEN: Instantly restores color to white grout and leaves them looking clean and protected and does not change color for a long time.
WIDELY USED: It is suitable for marking the position of processing required by industrial production such as home decoration, hardware processing, and automobile manufacturing.