Unique patented design works grip, wrist and forearms. Shifting sand provides active resistance for stabilizing core muscles. Alternative to balls, kettle bells, dumbbells, etc. Safer and easier on people and floors than metal weights. Sold unfilled; simply fill with dry all-purpose sand.

Hyperwear SandBell Neoprene Sandbag Free Weight (Unfilled), 12-Pound

This cross between a sandbag, a dumbbell, a barbell, a grip bag, a ball, a slam ball and a kettlebell is made of tough stretchy neoprene. This most versatile and enjoyable functional weight training tool on the market comes in sizes ranging from two to 50 pounds. It utilizes a patent pending fill mechanism that allows the end user to fill or empty the SandBell with whatever fill material desired.

detailedDescription":"Cross between a sandbag a dumbbell a barbell a grip bag a ball a slam ball and a kettlebellMade of tough stretchy neoprene the most versatile and enjoyable functional weight training tool on the marketSizes range from 2lb to 50lb Utilizes a patent pending fill mechanism that allows the end user to fill or empty the SandBell with whatever fill material desiredSand not included

Is Tear-Resistant：Y

Is Weather-Resistant：Y

Condition：New

Count：1

Manufacturer Part Number：1292312

Multipack Quantity：1

Model：1292312

Fitness Goal：Build Muscle

Is Waterproof：Y

Brand：Hyperwear

Assembled Product Dimensions (L x W x H)：12.00 x 12.00 x 0.25 Inches

Hyperwear SandBell Neoprene SandBag Free Weight Unfilled 2-50 lbs