The Sentinel

The Sentinel

Built from heavy-duty 3x3” 11GA steel tubing with 1” holes, these rack-mounted storage arms attach directly to most 3x3 1" hole squat racks and create a clean, secure, and elevated storage location for your adjustable dumbbells. No more storing them on the floor, balancing them on a plyo box, or fighting awkward re-racks after a heavy set.

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The Sentinel Reviews

Based on 1 reviews from Gym Radar users, the The Sentinel have an average rating of 5.00 out of 5. They're currently the #71 most-owned Dumbbell Storage on Gym Radar, with 1 home gyms reporting ownership.

1 Review

5.00 / 5
Performance
5.00 / 5
Build Quality
5.00 / 5
Value
5.00 / 5

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EvenOddz24
EvenOddz24's Gym
23 reviews
470 points
(5.00)
8/18/2026
Very sturdy holder for the dumbells, has reduced the plate stickage issue significantly. 3x3 steel very sturdy and easy to mount. Perfect for a versatile compact rack. My only wish was that it would be possible to mount the dumbell cradle to either the top or bottom so that way if I need to switch to mounting to a single upright it would switch to being angled the right way similar to how the synergy custom fitness mounts orient
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