Model#: BRK-IM

I-Shape Mounting Bracket w/ 1/4" Universal Joint Screw
Made of High Impact Plastic; Dimension: 2.75"x4.48"x0.53"

Model#: BRK-XL / LG / SM / SM-SL

Model#: BRK-CM

Universal Metal Mounting Bracket
w/ 1/4" Universal Joint Screw
#BRK-XL (5") in Black / #BRK-LG (3") in Black
#BRK-SM-SL (1.5") in Silver / #BRK-SM (1.5") in Black

Clamp Type Metal Mounting Bracket
1/4" Universal Joint Screw
Dimension: 2.44"x3.14"x1.37"