Short double arms on this specialized Slatwall Utility Hook are sized just right for merchandising the target item, a gleaming Trumpet. Close inspection shows the arms are also angled for the product, as well as padded to avoid scratching an expensive product. Trumpet mouthpieces are removed when retiring the instrument from play, but for merchandising purposes I would have left it in place to help project the image an instrument ready and eager to sound off. CLICK thumbnail to concentrate on the hook.

For Musical Instrument Fixtures by Title… 
Fender Guitar Slatwall Hook
Twin-Arm Trumpet Hook
Locking Wall Fixture for Guitars
Slatwall Saxophone Merchandiser
Snare Drum Display Rack is DIY

For Musical Instrument Fixtures resources see…
Musical Instrument Fixtures Tag” for a scrollable list of discussions.
Musical Instrument Fixtures Pinterest Board“ for a visual summary.
Musical Instrument Fixtures Index Page” for all resources and links

For posts on Slatwall construction see…
How to Test Slatwall Strength
Slatwall Cutaway Reveals Insert
Slatwall Metal Channel Frontview
Slatwall Cutaway: No Metal Insert.”

For other armored channel Slatwall posts see…
Slatwall Armor Adds Definition
Euro Slatwall Channel Inserts in Color
All Wire Hooks on Armored Slatwall
Bins Self-Mount to Slatwall
Fender Guitar Slatwall Hook