
Please use street address instead of PO BOX address. We promise to provide lifetime service for our adjustable dumbbells. Please don't hesitate to contact us if you need any help and we will reply to your message within 12 hours
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Please use street address instead of PO BOX address. We promise to provide lifetime service for our adjustable dumbbells. Please don't hesitate to contact us if you need any help and we will reply to your message within 12 hours

Please use street address instead of PO BOX address. Our product comes with a one-year warranty. If you encounter any issues — including accessories, replacement parts, or repair suggestions — we guarantee a response within 38 hours.

Engineered for strength, the BowFlex Results Series 552 SelectTech Dumbbells provide all the advantages of an adjustable dumbbell in a durable design. Premium metal components, a locking system that keeps weights in place, and a comfortable, non-slip grip set a new standard for durability, so you can lift with confidence for years to come. Quick adjustment dials give you the power to easily switch between weights, from 5 to 52.2 pounds. And the all-in-one, space-saving design replaces 15 sets of weights with one so that you can up the challenge as you get stronger.

FEIERDUN 2-in-1 adjustable dumbbells combine dumbbell and kettlebell functions, with 15 weight selections (2.5lb increments for 5-25lbs, 5lb increments for 25-52.5lbs) to suit beginners to pros for muscle sculpting and strengthening. Adjust weight in 1 second by twisting side dials for convenient, efficient workouts. Made of alloy steel with thermoplastic rubber, they’re durable, water-resistant and wear-resistant. The anti-slip handles (thicker middle, tapered ends) offer a secure grip. Space-saving (20.87" L x 12.6" W x 11.61" H) with a protective base to avoid floor damage, perfect for home gyms. Backed by a 1095-day warranty (free replacement parts for quality issues) and 12-hour customer service response.