Factory Seconds (Limited Release)

You won’t notice the difference during a workout.

These Factory Seconds are fully functional and built from the same high-performance Zytel® Nylon 66 as our standard Dualbells.

Buy 2 or more, save an extra 10%. Applied automatically at checkout.

⚠️ Only 20 Factory Second sets available.

Why lifters choose Dualbell:

• One setup, dozens of lifts. Bench, squats, deadlifts, rows, presses, curls — even landmine work. The compound barbell movements dumbbells alone can't fully replicate.
• Built strong. Zytel® Nylon 66 — aerospace- and automotive-grade — third-party stress tested to 1,900 lbs of force.
• Rotates on the bar. Natural self-balancing motion, easier on wrists and shoulders than a fixed holder.
• Fits what you own. Works with most traditional and adjustable dumbbells, including Ironmaster, Bowflex, Nuobell, Core Fitness, CAP, and NordicTrack.
• Stores anywhere. Shelf, closet, or under furniture. No rack needed.
• Quick to swap. On in seconds, off in seconds. No tools.

Will it fit your setup?

Dumbbells: Handles at least 4.25" (108mm) long and up to 1.38" (35mm) diameter — most standard and adjustable dumbbells. Customers confirm Ironmaster, Bowflex SelectTech, Nuobell, Core Fitness, CAP, NordicTrack, and more.

Bar: Any standard 1" (25mm) bar. (Not for 2" Olympic bars.) You'll also need collars to secure it — add the Pair + Collars bundle, or use collars you already own.

Here are a couple of bars available on Amazon, that we suggest.

• CAP Barbell 60-Inch Solid Standard Bar, Multiple Colors
• FitVid Standard Barbell for Weightlifting and Powerlifting

Available in Black and Blue — limited quantities per color.

✅ What to Expect • Fully functional — no impact on strength or durability
• Same design and performance as standard Dualbells
• Compatible with standard 1" bars

Cosmetic blemishes may include:
• Surface marks
• Color variation
• Minor molding imperfections