1515-ULS-Black-FB is a 1.50” x 1.50” ultra-lite fractional 15 series square T-slot profile with four open T-slots, one on each 1.50” face. The profile is smooth, which makes it resistant to dirt and debris buildup while also being easy to clean. The 1515-ULS-Black-FB profile is compatible with all 15 series fasteners. This profile lends itself to clean room applications, guards, enclosures, or workstations. The four open T-slots enable access from any direction and are useful for mounting accessories.