Fat Gripz - Blue

Name: Fat Gripz - Blue
Brand: Fat Gripz
Rating: 4.62 (50 reviews)

Fat Gripz (Blue) is the original clamp-on thick-bar grip trainer: a pair of high-density, patented rubber sleeves that open along one side so they clip directly onto a barbell, dumbbell, kettlebell, cable attachment, or pull-up bar, instantly turning it into a 2.25” diameter implement — the same working diameter as a dedicated axle bar, without buying one. The bigger diameter forces the hand and forearm to work harder to hold the same weight, building grip and forearm strength while recruiting more muscle through the arm on both pulling and pressing movements. It’s the middle of three Fat Gripz sizes (below the smaller One series, below the larger Extreme), and reviewers consistently recommend it as the starting point: aggressive enough to build real grip strength, but not so extreme that working weights become unusable for a first-time user.

Color	Blue
Length	Under 5 in
Weight	Under 2 lbs (pair)
Material	Patented, military-grade high-density rubber compound
Warranty	10-year manufacturer warranty
Manufacturer	Fat Gripz
Compatibility	Barbells, most dumbbells, kettlebells, cable attachments, pull-up bars
Inner diameter	~1 in (1.1 in per some reviewers)
Outer diameter	2.25 in (5.7 cm)

How it compares

	Fat Gripz - Blue	Rotating Deadlift Handle	Fat Gripz Extreme	Two-Finger Utility Gripper
GymRadar rating	4.62/5	4.63/5	4.6/5	4.58/5
Price	$29.99		$35.99
Color	Blue		Orange / Grey
Length	Under 5 in
Weight	Under 2 lbs (pair)		1 lb (pair)
Material	Patented, military-grade high-density rubber compound	Solid steel, powder-coated black finish	high-density rubber compound
Warranty	10-year manufacturer warranty		10-year warranty, 60-day money-back guarantee
Manufacturer	Fat Gripz	Titan Fitness		IronMind
Compatibility	Barbells, most dumbbells, kettlebells, cable attachments, pull-up bars		barbells, dumbbells, chin-up/pull-up bars, cable attachments	Designed to be used alongside Captains of Crush grippers
Inner diameter	~1 in (1.1 in per some reviewers)
Outer diameter	2.25 in (5.7 cm)		2.75" (7 cm)

4.6/5 · 50 GymRadar reviews

Reviews by source

Expert	4.62/5	50 reviews
Youtube	4.75/5	3 reviews
Reddit	4.0/5	6 reviews

The original Fat Gripz (Blue) is the clamp-on thick-bar trainer other brands get compared to — four independent editorial reviews land between 4.5/5 and 9.7/10, and video testers back it up with real numbers, including a 70-lb dumbbell hold that drops from a full minute to just 32 seconds once the Blue original is clamped on. Build quality and versatility are the standout dimensions: a high-density, patented rubber compound that owners report showing almost no wear after a decade of use, and a clamp-on design that fits barbells, dumbbells, kettlebells, cable attachments, and pull-up bars alike. The weakest dimension is out-of-the-box functionality, since lifters have to temporarily drop working weight while grip and forearms adapt, and grip veterans eventually outgrow the 2.25” diameter into the Fat Gripz Extreme.

+Functionality: measurably increases forearm and grip activation across pulls, presses, and carries — one tester's 70lb dumbbell hold fell from 60 seconds to 32 seconds once the Blue original was clamped on (YouTube: ConstantlyVariedFitness)
+Build quality: patented, military-grade high-density rubber compound with a knurled, textured surface (BarBend, Garage Gym Lab)
+Durability: a decade-old pair shows only minor wear on the bar-contact clip, with the rubber itself unworn and un-degraded (YouTube: Gym Crafter)
+Value: $29.95 with a 10-year warranty undercuts the cost of a dedicated axle bar while replicating its diameter (Garage Gym Reviews, YouTube: Gym Crafter)
+Versatility: clamps onto barbells, dumbbells, kettlebells, cable attachments, and pull-up bars, and is a recurring favorite in r/HomeGym grip-equipment threads (BarBend, r/HomeGym)

−Functionality: forces a temporary working-weight reduction while grip and forearms adapt to the increased diameter (BarBend, FitStep)
−Build quality: the 2.25" original is outgrown by advanced grip athletes, who progress to the larger Fat Gripz Extreme (FitStep, YouTube: ConstantlyVariedFitness)
−Value: doesn't fit every dumbbell — several adjustable-dumbbell handles are too thick for the clamp to close around (Garage Gym Reviews, YouTube: Gym Crafter)
−Versatility: installing and removing the clamp takes some practice and can feel fiddly at first (Garage Gym Reviews)
−Value: the textured rubber surface doesn't take chalk as readily as bare barbell knurling, which some lifters compensate for on max-effort pulls (Garage Gym Reviews)

$29.99

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