Ordinary Pin-Up Hooks are common, those for 3 to 4″ Grid less so. They can be effective dramatically displaying items seemingly free-floating against an airy Grid backdrop as here. But you have heard me rant about “sight leaks.” Just when do I think Open Wire Grid effective, and when it should be backed by a solid background? I can give you no general rule that works in every situation. The decision is subjective and not objective. I just know what I like when I see it. In addition to the white Pin-up Hook, also note the look of a Scan Hook with matching yellow Flip-Front Label Holder.

For small Pin-up Hooks SEE…
Pin-Up Hook or Micro Faceout?
Endless Basket Keeper Solution
Pin-Up Hook as Grid Mount
Pin-Up Hook Fills New Cashwrap Need.
Preformed Tab for Gift Cards
Pin-Up Hook for Wire Grid.

For related Pinterest Board visual summaries see…
Hooks: Pin-Up Hooks in Retail
Hooks: Tiny Hook Solutions in Retail

For more yellow fixtures…
Yellow Hooks on Yellow Slatwall
Yellow Can Be Green
Pin-Up Hook for Wire Grid
Baseball-size Display Hook Ends

Expand your creative color thinking with…
Color: Black in Retail Fixtures
Color: Blue in Retail Fixtures
Color: Grey in Retail Fixtures
Color: Red in Retail Fixtures
Color: Yellow in Retail Fixtures
Color: Assorted Fixtures and Finishes

For a great selection of Grid posts see…
Curved Grid and Grid Hook
V-Back Loop Hook for Grid
Diagonal Grid with Custom Hook
Speaker Platforms for Wire Grid
Grid Backplates: Plate vs Wire
Green Grid Hosts Grey All Wire Hooks
Corded, Drop-Shadowed, 4″ Grid
V-Back Grid Display Hook
Butt Welded J-Hook for Grid
Pin-Up Hook for Wire Grid.
Hybrid Grid / Bar Hook
Rare Anti-Sweep Grid Hook
Malleable Aluminum Grid Hooks
Grid Hook Lacks Grid
Zip-Tied Grid Hook
Grid Hook on Inverted Basket
Primitive But Creative Display
Grid Backplate Transforms Display
Elbow Faceout for Grid Turns Right Angle
Grid-Based Open Wire Shelf
Coffin Case Median Grid
Boots Hanging or Free-Standing
Savvy Auto Salon Sells Via Grid
Baseball Bals Tethered to Grid
Hang Tag As Grid Back Tag
Umbrella Waterfall Rack for Grid
Pin-Up Hook as Grid Mount

For a Pinterest Board visual summary see…
Hooks: Grid Concepts and Hooks in Retail

SEARCH “Sight Leak” for discussion of that aspect of design.