1. Leakproof construction: This heat-sealed lid prevents leaks and makes cleaning easy with warm soapy water. Reusable for repeated use. 2. Compact and portable design: Small, lightweight ice block suitable for backpacks and bags, making it an ideal choice for outdoor adventures. 3. Premium materials: Outer shell made from durable PP material to resist damage and provide long service life. 4. Efficient cooling solution: Delivers an instant cooling effect and keeps foods and drinks cold all day. Reusable design supports longer freezing time in your cooler bag. Use scenarios: - Outdoor activities: hiking, camping, picnics, and day trips where you need reliable cooling on the go. - Everyday meals: school or work lunch and short trips, keeping perishables fresh in lunch bags. - Travel and trips: road trips or beach days where stable cooling for beverages and snacks is important.