1001 is a 1.00" x 1.00" fractional 10 series square T-slot profile with one open T-slot on one 1.00" face. The profile has align-a-grooves to assist in alignment when connecting profiles. The 1001 profile is compatible with 10 series fasteners. The three closed faces on this profile provide a clean, aesthetic look and it lends itself to furniture, displays, desks, trade show booths, or retail kiosks.