Heavy duty aluminum shelving. Folds away easily to allow for maximum van space. 44 lineal feet, all shelving 19 inches deep with heavy, continuous lip. Manufactured by Taylor-Ready Systems. Came out of a Mercedes-Benz 170 wheelbase, extended. All support framing + hardware included for walls and ceiling. Easy/quick fold and store latches make easy work of setting and putting away shelves. The system is easily convertible to any van space, not just the 170 wheelbase.