Vestil CL Steel Cargo Bars are designed to hold trailer cargo securely in place while trailer is in motion. Cargo bars are made of 1½" square aluminum tubing that won't bend, and are adjustable in length, locking in place with a heavy duty locking ratchet. Models CL-17 & CL-20 fold into two for ease of transport, while CL-18 is a telescopic bar made of 2 pieces which separate for storage. Models CL-15, CL-16, CL-17 & CL-18 feature vulcanized rubber foot pads on the end plates, which grip the sides of the trailer, keeping cargo safely in place. Model CL-20 has E-Track pads on the end plates, making it compatible with E-Track. Vestil E-Track can be mounted on truck walls - see second chart below. E-Track is available in 2', 4', 5' or 10' lengths, in packs of 2, 4, 6 or 10 tracks.