Dual Slot Standard, Type Dual Track, Material Steel, Color White, Length (In.) 48-1/2 in, Width (In.) 1 in, Height (In.) 5/8 in, For Use With Shelf Brackets 6UDJ3, 6UDJ4, 6UDJ5, 6UDJ6, 6UDJ7, 6UDJ8, 6UDJ9, 6UDK0, 6UDK1, 6UDK2, 6UDK3, Number of Holes 4