Features 6-lb rubber construction Patented "Z-Grip" system on the cover to promote non-slipping workouts Incredibly effective in training the whole body through a complete range of motion Builds core trunk strength and joint integrity Medicine ball training is designed to strengthen shoulders, elbows, hips, and knees while allowing you full access to your muscle strength Promotes better resistance to injuries Provides resistance through a full range of motion to abdominal exercises to promote rock-hard abs Develops your core trunk strength

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