Designed to help relieve pain and reduce swelling, the Celsius Cold Therapy Rollerball is designed to speed up your recovery time. The encapsulated gel can be cooled in the fridge or feel free to use at room temperature. Cool encapsulated gel in the fridge or use at room temperature Encapsulated gel helps provide prolonged benefit Handheld design is portable and easy to use Ergonomic base delivers an easy glide Helps relieve pain and reduce swelling Side: 5.3cm diameter