The Atlas® Front Extension Kit (or FEK) is designed to add a two foot or 24 inch extension to the overall runway length of the ATPK-412 12,000 lb. commercial 4-post lift. The FEK easily bolts on the front of the runways (opposite the drive on ramps) extending out past the cross beam and columns. This model only fits the Atlas® ATPK-412 for other models please contact a salesperson