Describe Shelf life:3 years 1. [Waterproof design] Special ear protectors designed for bathing, washing hair, and swimming for young children, effectively preventing water from entering and protecting the baby's ear health. 2. [Gentle and skin-friendly] Made of medical-grade waterproof adhesive, non-irritating, comfortable to fit, suitable for the delicate skin of infants and young children, not prone to allergies. 3. [Strong stickiness] Super strong waterproof stickiness, does not fall off when exposed to water, easy to cope with various water activities such as bathing and swimming. 4. [Multi-purpose application] Suitable for various water environments such as bathing, washing hair, swimming, and playing in the water, it is a good helper for mothers to raise children. 5. [Safe and easy to tear] The edge is easy to peel off, does not hurt the skin when tearing off, easy to use, suitable for daily care of infants and young children aged 0-6. Precautions: 1. Keep out of reach of children to prevent accidental ingestion. 2. If you feel unwell, stop using immediately. 3. Do not use on damaged or swollen skin. 4. Store in a cool and dry place. Comment: 1. The manual measurement tolerance is 2-5g, please do not mind your replacement 2. Due to differences in different displays, the images may not reflect the actual color of the product. Thank you very much