Lumkew Grout Cleaning Brush, V Shape Stiff Grout Cleaner Brush for Floors Tile Grout Scrubber Bathroom Shower Corner, 1 Pcs

• Two Types of V-shaped Bristles: The long side of the V-shaped bristles can quickly clean large grout lines and tile joints; the short side of the V-shaped bristles can be accurately stuck into a variety of crevices and corners
• D-Shaped Non-slip Handle: High-density non-slip soft rubber on the top, no slippage even with wet hands. Inside ergonomic curvature with striped texture, comfortable to hold and scrub effortless
• Stiff Bristles: Customized PET bristles are precision implanted to keep their shape and luster even after prolonged and intense scrubbing, making it easy to scrub stubborn dirt, debris, soap stains and grease
• No Surface Damage: Gentle bristles with proper V-angle and bristle spacing apply even pressure to the grout without scratching any hard surfaces
• Multi-Angle Cleaning: From grout to tile, from floor to corner. The shape of this grout cleaner brush is easy to use at a variety of angles, cleaning faster and easier than using old-fashioned brushes

Product description What are the feature of this grout cleaning brush? Why long bristles make clean grout faster? Why are V-shaped bristles clean the grout lines more easier? Why is the D-shaped rubber-coated handle more comfortable? What does the built-in small scraper do?