40-4003-Black is a 40mm x 40mm metric 40 series square T-slot profile with three adjacent open T-slots, one on three 40mm faces. The profile is smooth, which makes it resistant to dirt and debris buildup while also being easy to clean. The 40-4003-Black profile is compatible with 40 series fasteners. The three closed faces on this profile provide a clean, aesthetic look while also having the capability to mount additional profiles, parts and accessories. It lends itself to furniture, displays, desks, trade show booths, or retail kiosks.