Portzon Weights Dumbbells 10 Colors Options Compatible with Set of 2 Neoprene Dumbbells Set,1-15 LB, Anti-Slip, Anti-roll, Hex ShapeAttractive MusclesPerfect for use in any exercise or program to tone and sculpt your arms, shoulders and back, including cardio for higher intensity. Non Slip Grip DesignPremium material coating make it gentle and grippe on hands and provides protection against calluses. Ideal for workout the unique HEX shape prevents rolling and is easy for stacking. Especially for at home workout programs. Solid cast iron made of high quality cast iron core to