A cap blunts the corner of this gondola endcap. It provides a concealing terminus to the C-channel  and embedded label strip preventing its edge from catching on passersby.

For shelf edge corner treatments see…
Label Strip Turns a 90º Corner
Round-Cornered C-Channel
Round-Cornered Gondola Shelf Cap
Round-Cornered Aluminum C-Channel
Round Cornered Island C-Channel

For curved shelving and aisle endcap SEE…
Curved Glass Endcap
Curved Endcap and Label Strip
Label Strip on a Curve
Curve Creates Store-in-Store Destination

For  curved rack concepts SEE…
Ikea Pocket Store Curved Rack Decor
Gently Curved Bar as Clothes Rack
Grid Backplate Transforms Display Into Curved Rack

For other curvilinear and serpentine fixtures SEE…
Curved Channel Hosts Scan Hooks
Fendi Scarves for Sophisticate on a Curve
Curved Grid and Grid Hooks
Corrugated Hook on a Curve
Slotwall and Label Strip Both Curve
Curvilinear Cooler Design

For more than you wanted to know on C-Channel try…
Inseam Size as Visual Footnote
Rollerblade Skate Hook
Reverse Hooking A Spiral Rack
C-Channel Forms Shelf-Edge Tray
Curve Creates Store-in-Store Destination
Curved C-Channel and Label Strip
Shelf Overlay Includes C-Channel
Back Labeling a Multi-Hook with C-Channel
Empty Box Sells Full Box
Super-Duty C-Channel Mount
Strip Merchandiser Offers C-Channel
Round-Cornered C-Channel
Round-Cornered Gondola Shelf Cap
Round-Cornered Aluminum C-Channel
Round Cornered Island C-Channel
Slatwall Tray for Photo Albums.”
Shelf-Edge Signs of Gold
Curved Channel Hosts Scan Hooks
Adjustable Shelf-Edge Tray for C-Channel
3-Way Sign Clip Creativity
Shelf-Edge Micro Flag
Shelf Edge Redundancy in Retail

For wood C-channel browse…
Classic Bakery Shelf-Edge Label Holders
Traditional Bread Rack
Supermarket or Local Bakery
Despoiling Wood Fixtures

For all the inside info on outside shelf-edges see…
Shelf Edge Profile Specs by Manufacturer