These SIX - 5 ft E tracks are to accept series E and A end fittings. All of our E track and O-ring fittings, adapter straps, and repositionable wheel chock mounting plates will. The E track is powder in a grey color. **** This package weighs 64 lbs, is over 48 unsound, and all shipping companies impose a one time oversized fee of 10.50 - already included.