Received my first Eleiko Competition Kettlebell, 12kg, and it's gorgeous but it's not hollow core, no hole in the bottom, and it looks like a lot of time was spent grinding the
FKB1 - Competition Kettlebells $1/lb Final Sale - fighterfitness
PRISP Competition Kettlebells 8-32kg - Pro Grade Steel Weights for Home Gym, Weightlifting, Fitness and Exercise | Walmart Canada
HIT Fitness Competition Kettlebells | Steel | Strength | Hit Fitness – HIT FITNESS
Hammer Strength Kettlebells | Life Fitness - Resistance Training