| | | Kawneer's 350 and 500 Tuffline® Entrances are a complete system of door, frame and hardware, designed and engineered to create total performance. Total toughness. For schools, university buildings, shopping malls, stadiums and convention centers. For any building entrance where traffic is heavy and the potential for abuse is high. The choice is in the stiles - 350 Tuffline® has a 3-1/2" wide stile, while 500 Tuffline® has a 5" wide stile. | | |