I bought these pads initially to easily have a dry heat system to reduce nipple pain due to vasospasm. Then in parallel and then, still "warm" mode for more efficiency to take my milk: I saw a clear difference between without and with the hot pad! And I've also been testing the use of cold at a recent version of engorgement I struggled to absorb: a bush to relieve frozen at the time of cold weather during the day (and it really relieves! ), and another I was warming to just before feeding ... In short, for all situations and all the uses I find these really practice pads! 15s heating in the microwave is really great when we know as the days are short with a newborn at home! And the temperature is long enough for the good need for them, at worst it is put back a dozen seconds and off you go again. Shape matches well attached, and the small system to hook the pad to stuff breast pump is very convenient. In short, a great purchase.
By cons attention to heating time: not enough awakened one morning, I put 1 minute instead of 15 seconds ... (the usual time for my coffee ^^), and it has not forgiven: under the effect of heat, the plastic is torn, so I had to throw one of my 2 pads ...
Besides, I hesitate to buy one of the blow, that's how I recommend this product!