• Ultra-Fine "Micro Thin" Bristles: The bristles have a diameter of only 0.01-0.02mm (much thinner than standard "soft" bristles), made of high-elasticity nylon. They can bend flexibly to fit the contours of teeth and gums, penetrating deep into interdental gaps and the gum line to remove plaque and food residue—without scratching enamel or irritating sensitive gums.
• Ergonomic Black Handle: The handle is crafted from BPA-free plastic with a matte black finish (resistant to fingerprints and slipping). It has a balanced weight distribution and a non-slip grip (often with textured grooves) that fits comfortably in adult hands, ensuring stable control during brushing (reducing excessive force).
• Deep Cleaning & Gum Protection: Unlike ordinary toothbrushes that only clean the surface of teeth, the micro-thin bristles target hard-to-reach areas (e.g., interdental spaces, behind molars) where plaque accumulates most—helping prevent gingivitis, bad breath, and interdental caries while protecting gum health.
• Durable & Hygienic Design: The bristles are firmly planted (resistant to fraying or falling off, with a service life of 2-3 months) and the black color is less likely to show stains (compared to white bristles), maintaining a clean appearance for longer.

• Made in :Japan

（specific ingredients are subject to product packaging; the following are core and common components）：
Micro Thin Bristle Material:
High-Elasticity Ultra-Fine Nylon (0.01-0.02mm diameter): Sourced from Japanese professional suppliers, it has excellent flexibility and durability—able to bend to fit tooth contours without breaking, and resistant to fraying after long-term use. It meets Japan’s JIS L 1015 standard for bristle safety, with no heavy metals (lead, mercury), phthalates, or formaldehyde.
Handle Material:
BPA-Free Polypropylene (PP) + Matte Black Coating: The base is made of food-grade PP (lightweight, heat-resistant to 80℃, and non-toxic), with a surface coated in a water-based matte black finish (free of harmful solvents like benzene). The coating is scratch-resistant and non-fading, maintaining a sleek appearance and preventing slipping during use.
Bristle Adhesive:
Medical-Grade Epoxy Resin: Used to fix bristles to the brush head, it is non-toxic, waterproof, and has strong adhesion—preventing bristles from falling off (avoiding accidental ingestion). It complies with international safety standards for oral contact adhesives, with no volatile harmful substances.
Anti-Slip Grip Material (If Applicable):
Food-Grade TPE (Thermoplastic Elastomer): Some variants have a TPE grip area on the handle—soft to the touch, non-slip even when wet, and compatible with sensitive skin (no irritation from prolonged contact).

Pre-Brushing Preparation: Wet the bristles with warm water (avoid hot water, which may damage the micro-thin bristles’ elasticity) and squeeze a pea-sized amount of fluoride toothpaste onto the brush head.
Correct Brushing Posture: Hold the handle with a relaxed grip (avoid gripping too tightly, which may cause excessive force). Tilt the brush head at a 45° angle to the gum line—this allows the micro-thin bristles to reach the gum line and interdental gaps.
Gentle Brushing Movements:
Gum line & outer/inner teeth: Use small, circular motions (1-2mm in diameter) with light pressure (the bristles should bend slightly, not stand straight) to clean plaque without irritating gums.
Interdental spaces: Gently insert the brush head vertically into gaps (for narrow spaces) and move back and forth slightly to remove trapped food residue.
Chewing surfaces: Use gentle back-and-forth brushing to clean grooves and pits.
Brushing Time & Frequency: Brush for 2 minutes each time (divide the mouth into 4 areas—upper left, upper right, lower left, lower right—and spend 30 seconds on each) , twice a day (after breakfast and before bedtime).
Post-Brushing Care: Rinse the toothbrush thoroughly with water (remove toothpaste residue and plaque), shake off excess water, and place it in an upright, ventilated holder (away from other toothbrushes to prevent cross-contamination). Replace the toothbrush every 2-3 months or immediately if bristles fray.