At last we've found a bracket that hangs on virtually any railing, from narrow wrought iron to 6" deck rails. Solid steel with a protective finish, these are the sturdiest, safest holders we've seen. (Shown with our Self-Watering Trough Planter, (sold separately). Versatile bracket hangs from almost any railing Horizontal crosspiece creates a single, sturdy unit No tools needed to mount Holds trough planters or windowboxes Solid steel Order the 15" wide bracket for planters up to 28" long (weighing up to 44 lbs) and the 24" for planters 28" to 39" long (up to 66 lbs) Bracket projects out from railing or wall 8-1/2" and will cradle a windowbox that's up to 7" deep