Durable 20 lb Soft Kettlebell. Why choose our Durable 20 lb Soft Kettlebell?. Choose our kettlebell and start sculpting your ideal physique with elegance and safety! Unit Quantity: 20 Material: Vinyl,Soft materials Sport/Activity: Weight Lifting,Conditioning,Strength Training,Core Training Features: Ergonomic Handle,Heavy-duty materials,Soft materials,Compact structure,Offset center of gravity,Durable,Various sizes.