Its soft exterior ensures safe training without compromising on performance. Soft Kettlebell with Large Handle - 40 lbs. Why Choose Our Soft Kettlebell?. Versatile usage for a variety of exercises. Unit Quantity: 40 lb Material: Synthetic Sport/Activity: Gym & Training,Weight Lifting Features: Ergonomic Handle,Heavy-duty materials,Soft materials,Offset center of gravity,Compact structure.