White plastic sturdy corner brace. 3/4" high,
3 5/8" on longest side, 2 1/8" along 90º sides.
Attach with screws or staples. 10/pk
#34442 - 10/pk - $2.69 / 10+ $2.39 pkQTY  

Screw in corner brace. Actual pieces are white.
3/4 x 3/4" Attaches with 2 screws not included.
#34682 - 10/pk - $1.89 / 10+ $1.59 pkQTY