Hot & Cold Rings: Powered by Cryothermal Technology™ The TheraFace Hot and Cold Rings, which attach to your TheraFace PRO device, feature acombined 6 varying temperature settings to better help your skin absorb creams, help reducefacial puffiness, improve radiance, and much more. Hot Ring: Relaxes and reduces tension Decreases muscle spasms Increases blood flow Cold Ring: Decreases pain Decreases inflammation Decreases muscle spasms PRO tip: The Cold Ring attachment can be used with your favorite percussive attachment forultimate treatment to depuff and relax your facial muscles. Features: Compatible with the TheraFace PRO Available in two colorways, White or Black Easy to clean for a hygienic experience Hot Ring Temperature: Settings:○ 35C/95F○ 39C/102F○ 43C/109F Cold Ring Temperature: Settings:○ 26C/78F○ 22C/71F○ 18C/65F Warranty: Hot Ring: 90-day limited warranty Cold Ring: 90-day limited warranty | Therabody TheraFace Hot and Cold Rings Device - Black | Dermstore