Rack-A-Tiers Stud Ball Magnetic Stud Finder
- Rare earth magnet, 27 pounds pull
- No batteries required
- Through 1/2 or 5/8 inch drywall, tile and 3/4 inch plywood
- Finger loop for sliding across walls
- 1.6 ounces, 1 year warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A battery free magnetic ball that finds studs by locking onto drywall screws and nails. It locates fasteners rather than wood, so walls with sparse screws take more searching.
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ASIN: B00JV3JNE6Category: Stud Finders
Overview
A DIYer tired of electronic stud finders gets a spherical rare earth magnet from Rack-A-Tiers that snaps to the screws and nails holding drywall to studs. Slide it by the finger loop and it stops on metal.
No batteries or calibration means it is always ready. It finds fasteners, not the stud itself, so it shows where screws are rather than stud edges.
Who it's for
DIYers and installers hanging TVs, shelves and cabinets on drywall will find screw lines fast. Those needing wire detection or stud edges should use an electronic scanner.
Pros and cons
- No batteries or calibration
- Strong magnet holds on the wall
- Works through tile and paneling
- Light and pocket sized
- Finds fasteners, not studs directly
- No wire detection
Performance notes
Detection depends on fasteners being present, since the magnet reacts to metal rather than wood density. The spherical shape concentrates the field, which helps through thicker coverings. Once it locks on, it holds, marking the spot hands free.
Specifications
| Brand | Rack-A-Tiers |
|---|---|
| Dimensions & fit | |
| Item weight | 1.6 ounces |
| Item Dimensions L X W X Thickness | 6"L x 1"W x 8"Th |
| Capacity & performance | |
| Measuring Range | 1/2 or 5/8 inch drywall, ceramic tile, up to 3/4 inch plywood |
| Power & efficiency | |
| Power Source | None, no batteries |
| Construction & materials | |
| Color | Assorted |
| Included components | |
| Included Components | Stud Finder |
| Unit Count | 1 Count |
| Warranty & support | |
| Warranty Description | 1 year manufacturer warranty |
| Other details | |
| Scanner Type | Magnetic, rare earth |
| Shape | Round |
| Pull Force | 27 pounds |
| Item Type Name | Rack-A-Tiers 52300 Studball, Colors May Vary (Basic pack) |
Frequently asked questions
How do I use the Stud Ball on a wall?
Hold the finger loop and move the ball across the wall. It stops at screws, plates or frames behind the drywall.
Does the Rack-A-Tiers Stud Ball detect wiring?
No. It is a magnet and only reacts to metal like screws and nails.
Will the Stud Ball work through tile?
Yes. It works through ceramic tiling and up to 3/4 inch plywood paneling.