Yes4All Combo Special: Cast Iron Kettlebell Weight Sets &ndash; Weight Available: 5, 10, 15, 20, 25, 30 lbs SET OF 10 + 15 LBS HIGH-QUALITY SOLID CAST IRON KETTLEBELL: Built to last - constructed of solid cast iron with no welds, weak spots, or seams. Great for training indoor & outdoor BLACK PAINT FINISH: Painted to prevent corrosion and increase durability & give you better grip strength with no slipping in your hand like a glossy finish WIDE TEXTURED HANDLE: Slightly textured handle to provide a comfortable & secure grip for high reps, makes chalk unnecessary for both men & womenHANDLE: Smooth, slightly textured handle to provide a comfortable & secure grip for high reps, makes chalk unnecessary for both men & women FLAT BOTTOM FOR STABILITY: Enable upright storage, ideal for renegade rows, handstands, mounted pistol squats & other exercises requiring a kettlebell with a flat bottom MOST VERSATILE & FUNCTIONAL FITNESS EQUIPMENT: Used for swings, deadlifts, squats, lifting, get-ups & snatches to workout & increase strength of many muscle groups & body parts including biceps, shoulders, legs, & more 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