WEKIS Floating Shelf Bracket 12 Inch, Hidden Invisible L Shelves Brackets, Heavy Duty Cast Iron 1/5 Inch Metal Industrial Black Shelf Bracket Hardware Supports, Brackets for Shelves (12 inch - 6 pack) :
18″ Heavy Duty Floating Shelf Bracket | Walnut Wood Works
Floating Shelf Brackets 14 Inch, Heavy Duty Black Floating Shelving Bracket, Wall Mounted Decorative Industrial Metal Brackets for Shelves, Set of 4 : Amazon.ca: Tools & Home Improvement