1575-Black-FB is a 1.50" x 0.75" fractional 15 series rectangular T-slot profile with one open T-slot on one 1.50" face. The profile is smooth, which makes it resistant to dirt and debris buildup while also being easy to clean. The 1575-Black-FB profile is compatible with 15 series fasteners. It is a thinner profile that connects easily to flat surfaces and works well as a supporting structure or spacer for mounting accessories such as handles, door tracks, rails, valves or sensors.