Side Clamping Bookshelf Wall Speaker Mount Priced per pair (2 pieces) Designed for any bookshelf speakers as well as speakers without keyhole slot or thread hole inserted Each bracket supports speaker up to 44lb (20kg) and speaker width between 3.15 inches - 14.57 inches (8 - 37cm) Features 15 degree downward tilting and 40 degree left / right swiveling for optimal positioning Durable and stable construction made from steel