The smaller roller squeaks.
I purchased this for its affordability, so I cannot compare to any higher-end rollers. Rolling it along my glands helped reduce swelling in my eye, similar to a massage with my knuckles. However, if I was rating the roller itself, the smaller roller squeaks pretty badly and does not roll smoothly. I am very aware of it when rolling on my face, and I tend to use that side more as the larger side is often too wide for my face and better for my neck.
Rating: 3 stars