Not practical good for emergencies
works well as described however the heat will only last 20-30 minutes after which it feels like close to room temperature, reactivating it is a task byitself, boiling water and spending another 30 minutes so that you can use it for 30 minutes only, all in all my bean bag filled with husk seeds or something like that you just stick it in the microwave for 1 minute and it provides heat for 30 minutes and all you have to do is stick in microwave again
Rating: 2 stars