The NANO X foot roller features an extra-firm foam density for those who prefer a deep tissue massage. The NANO foot roller is specifically designed to relieve aches and pains. Use the Triggerpoint NANO roller for targeting tension in the small muscles of the foot and forearms. The raised texture feels like a massage therapists hands and fingers relieving your aching foot from a long day. The NANO roller is lightweight and portable, as well as sweatproof and easy to clean.