Very sturdy roller, and high quality. There are many videos on the internet that show how to use it. The small part, for example, is more for smoothing the jawline. I put it in the fridge for a quarter to twenty minutes and then I really feel a difference in my face. Because I did it without putting it in the fridge, it wasn't the same, so I don't think it's worth it. Always before you do it, apply a little serum or moisturizer. I recommend it!

This company is very high-quality and affordable, both in brushes and in these products. I place them in the refrigerator, they freeze and maintain the temperature during the massage.