The Valeo Hollow Core Foam Roller is all you need to massage and condition all major muscle groups 8 minutes a day 5 times a week. Moving your body weight against a textured roller uses self-massage to break up trigger points and soothe tightness. Rolling out ensures you massage away fascia buildup and joint tightness.FEATURES: Develops core strength balance and flexibility Massages sore muscles and enables a deeper stretch Promotes better posture and skeletal alignment Relieves tension and helps prevent muscle knots Ideal for upper body hips thighs back and legs Instructional guide included