A bit small for a shelf, so maybe these might be better classed as open-sided Slatwal Trays or Ledges. In this use they almost perfectly fit the body-and-bath offering and narrow slatwall Endcap. But I could see them aligned or randomly placed on a larger wall of Slatwall. CLICK the thumbnail for a closeup.

COMPARE directly to…
Sunglasses By Slatwall Tray
Slatwall or Tower Hat Tray
Simple Extruded Shelf or Tray

For other Bath-and-Body posts SEE…
Body Wash Test In-Store
Fresh Spring Wall of Bath Puffs
Faux Sink Presents Hand Cleaner

For smaller side-mount trays SEE…
Auto Feed P-O-P for Gift Cards

For interesting vertical display bin concepts see…
Bins Self-Mount to Slatwall
Straight-Entry Plastic Pegboard Bins
Wire Basket Hybrid Mount Sells Plush
Slatwire Bin Employs Adhesive
Inclined Ramp + Inclined Basket
Straight-Entry Wire Basket
Bath and Body Slatwall Trays as Shelves