Bitter Nail Polish & Repair Serum Set (5ml Each) [Anti biting and anti sucking]: This special formula for children's nail biting treatment helps prevent finger sucking and nail biting. It effectively protects children's fingers and eliminates their bad habit of biting their fingers. [Natural Ingredients]: The nail biting care ingredients we use for children are natural plant extracts. It will not cause any harm or side effects to the baby. [Durability]: This children's nail polish adopts the slow release film forming technology, which has a bitter taste for at least 24 hours, effectively preventing the bad habit of nail biting. [Easy to use]: Our children's nail biting care is very simple and easy to use. Simply twist, apply, and air dry. There is no strong odor. The smaller one is easy to carry and can be carried when going out. [Easy to Wash]: Simply use regular soap and warm water to remove the nail biting care solution for children. It is easy to wash and there will be no bitter residue after washing, ensuring that you will not taste bitter when eating.