3-Tier Kettlebell Rack $98.00 Designed for compact kettlebell storage, the GDKR50 provides storage for 6 total kettlebells. The GDKR50 stores any size kettlebell from 5lbs to 50lbs. Three offset shelves provide easy access for all 6 kettlebells. The modern design complements any fitness room. The perfect companion for your Body Solid kettlebells, the GDKR50 is compact, stable and affordable.