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TwistLock Adjustable Dumbbell Pair

SMTLDB - Selectorized 2-50lbs.

Retail Price $599
Everyday Low Price $499
MSRP $599
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Retail Price: $179.00
Sale Price: $179.00

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StairMaster TwistLock Adjustable Dumbbell Pair 2-50 lbs.

TwistLock Dumbbells
are the most space efficient and easy to use home dumbbell system available on the market today. The patented cutting-edge technology allows weight adjustments with the simple twist of the dumbbell handle. You never have to take your hands off the dumbbells - no knobs to turn, pins to align or levers to slide. You simply place each dumbbell into the cradle and twist the handle to your desired weight selection. Twist and Go!

The TwistLock design looks like a dumbbell, feels like a dumbbell and delivers results like a commercial gym dumbbell set. Unlike many other adjustable style dumbbells on the market, the perfectly balanced TwistLock dumbbell delivers the same basic sizes as gym style dumbbells as you increase the weight. Whether you are using a 5 lbs or 50 lbs weight, the size of the dumbbell closely resembles the size of the same weight you would use in the gym.

Paired with our custom stand (sold separately), TwistLocks are convenient and attractive in the home setting and we’ve incorporated numerous thoughtful features with your performance and comfort in mind. The contoured and textured dumbbell handles provide a comfortable and secure grip during your workouts. For added safety, the TwistLock weight adjust system can only be made when the dumbbell is docked with the beautifully designed cradles that hold the dumbbells.

TwistLock Stand Sold Separately. Item #SMTLSTAND

Patented TwistLock Design fast and easy weight adjustment with the simple twist of the handle to keep your workouts effective and moving.
Soft Grip Handle Design contoured handle that is textured to provide a comfortable and secure grip.
Durable Plate Design engineered to last with over molded high impact plastic body.
Dual Sided Weight Selection Windows highly visible weight selection windows located at each end of the handle for quick weight selection.
5 lbs Starting Weight w/ 5 lbs Increments weight increments accommodate users of all fitness levels.
Aluminum Weight Cradles are Included easy access and secure storage of the dumbbells. Plus with the open-end design of the cradles, they can be easily picked up and moved when needed.
Free Exercise Guide 20 distinct dumbbell exercises enabling a total-body workout for users of all fitness levels.
Parts Warranty 2 years (Residential Use Only)
Dumbbell Stand Sold separately, this heavy duty steel frame allows you to mount your TwistLock Dumbbell cradles to the stand at the optimal height for quick and easy access to your dumbbells.


Weight range 5 to 50 lbs (2.2 to 22.7 kg) each dumbbell
Weight increments 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 lbs
Size range 5 lbs (2.2 kg) starting weight is only 9.3” (23.6 cm) long, length increases with additional weight
Includes 2 dumbbells, 2 cradles and exercise guide
Product dimensions (1-5 lb handle Only) 9.4” L x 3.5” W x 3.5” H (23.8 L x 9 W x 9 H cm)
Product dimensions (1-50 lb Dumbbell Only) 14.5” L x 7.9” W x 7.5 H (36.6 L x 19.8 W x 19.1 H cm)
Product dimensions (1 Cradle Only) 16” L x 9.1” W x 3.6” H (40.8 L x 23.2 W x 9.2 H cm)
Product dimensions (1-50 lb Dumbbell in Cradle) 16” L x 9.1” W x 8” H (40.8 L x 23.2 W x 20.3 H cm)
Product weight (2 Dumbbells) 100 lbs (45.5 kg)
Total shipping weight (2 Dumbbells with 2 Cradles) 128.5 lbs (58.4 kg)
Shipping info Ships in 2 cartons – each carton contains one dumbbell with one cradle
Product Options
Stairmaster TwistLock Dumbbell Stand (SMTLSTAND)
Retail Price: $179.00
Sale Price: $179.00

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Weight: 100 lbs

Shipping Terms

This item is usually shipped via FedEx Estimated time to ship is 1-2 days, please allow 7 to 10 business days for delivery.

Please review our FedEx shipping terms below.

  • If you have an item(s) that qualifies for 'Free Shipping', you may still see a shipping charge if you have additional items that are not free shipping.
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