Yes4All Combo Special: Vinyl Coated Kettlebell Weight Sets &ndash; Weight Available: 5, 10, 15, 20, 25, 30 lbs 100% cast iron Imported Material: cast iron encased in vinyl to reduce noise & protect your floor textured wide handle for better grip in-door use only weight set: 10 + 15 lbs Enhance strength, stamina and coordination Increase lung and heart capacity Prevent cardiovascular diseases, heart attack or strokes Work out total body, burn fat and tone all lean muscles Activate your core &amp; stabilizing muscles - for active recovery Improve movement, agility and speed