HotRock - 175 deg F of Deep, Penetrating HEAT! – MedRock, Inc.
HotRock - The Foam Roller That Heats Up Past 160F | Indiegogo
HotRock - the World's Best and Heated Foam Roller
MedRock HotRock Foam Roller Review: Combines Muscle Release and Comforting Heat in One | GearDiary
HotRock: the foam roller that relieves sore muscles with intense heat
Amazon.com: HotRock Ultra-Heated High-Density Foam Roller Quick Heating Muscle Recovery Sport Roller Deep Tissue Massage with Customizable Temperature for Body and Muscles : Industrial & Scientific