Cryogelular - Ice Cold Gel Pack (heat pack or cold pack)Made from durable vinyl that remains soft when freezing cold. Burst and puncture resistant Soft gel can be put in the freezer or refrigerator for cold therapy Can be microwaved of boiled for heat therapy. Can easily be cut to smaller size. Sheets are divided into many cells that can be separated with scissors to make smaller sheets Specifications: 10 x 6 cells 42cm wide x 35cm High x about 1cm thick This large sized gel heat cold pack can be boiled