(Suitable for babies around 2-3 months old, when they can hold their heads up) [Size] Main body: Approximately 185 x 140 x 20mm String length (per string): 525mm It gently provides coolness without directly cooling the baby's body. Excellent cushioning enhances the baby's comfort. ⚠️ Cooling/heating packs are not included. Please consider purchasing only if you understand that this item has been stored at home.