The Flic metal shelf brackets are adjustable to work with nearly any material shelf ranging anywhere from 1/4 in. to 5/16 in. thick. When paired with a shelf measuring 6 in. or less in depth, these brackets can support up to 11 lbs. One of smallest shelf brackets, Flic is a great compliment with glass shelves for a minimalist look and feel. Flic small size helps give the appearance of floating shelves. The Flic shelf bracket set comes with 2 Flic brackets so only one package is needed per shelf.