Instruct: Classify Amazon reviews into positive or negative sentiment
Query: very disappointed

I usually use the Salonpas hot capsicum patch that I get in local supermarket. They are much smaller, about 4x5" (guessing). They get super warm and last for at least 8 hours. I use them on my back/hip area. These "Hisamitsu" 10 pak patches from Amazon are ridiculously HUGE. I cut them to the size I need. But... they DO NOT get nearly as warm as the "american" Salonpas. I barely felt the heat and the heat I did feel lasted just a few hours. In addition, these large amazon patches do not stick very well. They would stick for a short while, then I would have to keep pressing it on. Overall I am very disappointed in the quality and results of the "hisamitsu" Salonpas patch.