5/10/25 Pcs Reusable Ice Packs for Coolers Lunchbags Shipping Storage Cold Food
Size: 4.7" x 7.4"
Max Capacity: 400 ml
Material: PVC & Gel
How to use it --
Inject water into the bag (the amount should not exceed the water level). after the water turn into gel, freeze it in the refrigerator for 7 hours. The ice bag is reusable.