The IEA Medical mixed set combines two practical types of compresses in one package: three hot/cold gel compresses (12 x 20 cm) and ten instant cold compresses for single use. This gives you both reusable gel compresses for home use and activatable disposable ice packs for when youre on the go. The gel packs can be cooled or warmed as needed. For cold applications, they should be pre-chilled in the freezer. For heat applications, they can be warmed in warm water or briefly heated in the microwave; then kneaded briefly to ensure even heat distribution. The gel packs are reusable and easy to wipe clean. These instant cold packs require no pre-cooling. To activate them, firmly squeeze the pack in the middle and shake until the cooling begins. Each pack is designed as a single-use product and is particularly suitable as an addition to travel, sports bags, or first-aid kits.