2RX0031IM Weight: 3 lbs Features: -Medicine balls add a bit of card to your strength workout.-Rough texture cover gives you a secure grip during workout.-Great for use during stretching while warming up tossing ball back and forth with partner or just moving the ball while stretching core muscles. Specifications: -Available in 3lbs, 6lbs, 9lbs and 12lbs weights. Assembly Instructions: -No assembly required.