The Atlas® Front Extension Kit (FEK) is designed to add a two foot (24) extension to the runway lengths on our popular 12,000 lb. and 14,000 lb. four-post lifts. Please specify which capacity model you have when making your order. The Atlas® FEK bolts on to the front of the runways, extending PAST the cross beam of the Atlas® 412/412A and Atlas® 414/414A four post lifts.