80/20 Inc, 2751, 10 Series, Roller Wheel Bracket Assembly 10 Series Compatible Mounts to the 1" side of a 10 Series t-slot profiles. Ideal for moving framed doors and other components. Bracket is made out of clear anodized aluminum and measures 1" wide x .5" thick (thickest part) x 3.125" long. Wheel is made out of self-lubricating black nylon and comes with a permanent lubricated bronze bushing. Wheel measures 1.5" in diameter.