What's the difference between a facial ice roller and a cold massage roller ball?

Facial ice rollers use a wide, lightweight roller head for the face, eyes, and neck and target puffiness and redness. Cold massage roller balls are dense stainless-steel spheres meant for deep-tissue work on muscles, backs, and feet, with fitness and massage communities citing them for plantar fasciitis and post-workout soreness. They are not interchangeable, so buy for your primary use.