The york 2kg to 20kg vinyl kettlebells are an incredible set for gradual strength building which will satisfy every active person and may become part of a family or professional gym used regularly they can greatly improve both the fitness functional strength endurance muscle tone core stability and balance of the body at the same time helping burn the unnecessary calories set includes 2kg 4kg 6kg 8kg 10kg 12kg 14kg 16kg 18kg 20kg kettlebells