Features:They provide you with a tool that can greatly increase your core strength and stability while providing you with an incredible soft tissue massageThe grid can be used from the comfort of your home， as part of your daily massage routine， or integrated into your athletic activities to help support and achieve a comprehensive core workoutPerfect for self myofascial release for all sports enthusiasts: Pilates， Bodybuilding， Rugby， Boxing， Running， Weight Training， Yoga and Sports BeginnersMini foam roller is lightweight and portable， perfect for travelingProvides a unique targeted massage to increase circulation and help maintain flexibilityMaterial: EVASize(LxH): Approx. 14x10cm/ 5.51x3.94"Inner Diameter: Approx. 10.2cm/ 4.02"Package Included:1 x Mini Yoga Foam Massage Roller