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
Competition Standard Kettlebell Gym Strength Training (8kg - 36kg Kettlebells) | eBay
TACFIT Competition Kettlebell - TACFIT®
ProElite Competition Kettlebell - Gain strength with durable kettlebells for sale at Power Systems | Power Systems
Rogue Competition Kettlebells | Rogue Fitness
Why competition kettlebell is more popular in kettlebell work exercise?