Thank you for viewing. Retail price: 3580 yen. My baby really likes it because it doesn't get too cold, and I have two different patterns, so I'm selling this one. It's new, unused, and stored at home. It can be attached to strollers and car seats. Feature 1: Keeps the optimal temperature for 5 hours without overcooling! "5-hour keep! Long-lasting cool gel" It melts slowly and releases a moderate amount of coolness little by little, so the coolness lasts. "28°C or less optimal temperature design" It doesn't overcool or overheat, maintaining the optimal temperature, so both the baby and the mother can feel safe! Feature 2: Plenty of features that are gentle on babies "Large-sized gel" It effectively prevents sweatiness on the baby's back, where they tend to sweat. "Soft gel" It's unlikely to harden even when cooled in the freezer. "Fluffy cushion" It has high cushioning and is fluffy and soft. With moisture-wicking and quick-drying function.