Extra-thick ice stick for water bottles, resealable ice-making bags, 20 bags x 4 sets

These are zipper-lock ice bags made by Chemical Japan.

This is a set of 4 packs, with 20 ice pop bags per pack, designed for water bottles.

They are convenient for freezing not only water but also sports drinks, tea, juice, and more.

Please only purchase if you understand that this item has been stored at home for a long period.