Features: Teeth Whitening Pen: Toothpaste is formulated with active ingredients that are gentle and effective. This serum removes surface stains and discoloration that mouthwash can cause.  REMOVES YEARS OF STAINS: Our professional toothbrush effectively and quickly removes years of stains caused by coffee, tea, wine, soda and more, and its natural scent leaves your mouth feeling fresh.  PREMIUM QUALITY: This tooth-safe serum will leave your teeth visibly better with every use while protecting your teeth, making it a great choice for those with sensitive teeth. Precise Aiming: The brush head is fine and focused, effectively applying gel to targeted areas on teeth. Make every visible part of your smile whiter.  Easy to use: The tip of the dental kit has a small brush, which makes it very convenient and easy to "apply" the essence formula directly to the teeth, evenly coating the teeth without making a mess.  Comment:  1. Manual measurement tolerance is 2-5g. Please don't mind your substitution.  2. Due to differences between different monitors, the image may not reflect the actual color of the item. Thank you so much!