【4-1 DEEP CLEANING BRUSH SET】 - Each tile grout cleaning brush set comes with 4 types of brushes for different uses. All our brushes are made of premium ABS plastic with handles and pollution-free polypropylene bristles. Please feel free to use it and enjoy the most comfortable home life!【UNIQUE GROUP FOR HOUSEHOLD】 - (Flat brush) is for grout, grout tiles, cleaning bathtub, floor or utility rooms (Curved brush) is suitable for shower door headers, sinks, cooktops, dials and other small spaces or crevices. And the (Double Brush) is the specialist for all the places you want to clean, different colors on both ends help you distinguish dirty areas.【ERGONOMIC DESIGN】- Each brush features an extended design with non-slip curved handles that fit perfectly in your hand to allow you to perform a powerful action. The handle is comfortable and you can put a lot of downward pressure on the brush without it slipping in your hand.【MULTI-PURPOSE ESSENTIAL CLEANING TOOLS】- Ideal for bathtubs, tile