Amazon.com : PowerBlock EXP Adjustable Dumbbells, Sold in Pairs, Stage 1, 5-50 Lb. Dumbbells, Durable Steel Build, Innovative Workout Equipment, All-in-One Dumbbells, Expandable with Expansion Kits : Sports & Outdoors
PowerBlock Pro EXP 50 Set | California Home Fitness
Powerblock Selectorized Dumbbells-Sport EXP Set (and available expansion kits) - New Mexico's Largest Selection of Fitness Equipment at The Fitness Superstore.
Pro 50 Adjustable Dumbbells - Up to 50 lbs | PowerBlock