Purchase instructions: 1. This product comes with its own packaging box, so there is no need to purchase a separate box! 2. Each style is waterproof for swimming up to 30-50m meters! However, it is not suitable for hot water baths! 3. For product quality issues, buyers need to return at least 10 items for exchange - same product will be processed. 4. The order will be shipped within 48 hours after payment (may be delayed during holidays). Please do not rush the shipment during the normal delivery period. Within Guangdong Province, delivery is usually the next day; for other provinces, it takes 3-5 days; for remote areas, it takes 5-7 days. This time frame is for buyer reference only and is not a reason for refund.Thank you for your cooperation! Wishing you a prosperous business and abundant wealth! English version