Lightweight and durable, the Tourna Single Sticks easily convert a doubles tennis court into an ITF Tournament Regulation singles court. Perfect for indoor or outdoor surfaces, these durable aluminum sticks feature a bottom pad to prevent digging and provide stability. Designed to work on hard court, clay, grass and carpet Pad on bottom prevents digging into clay or grass and stability on all surfaces. Screws together to save on space when stored Durable, lightweight, no-rust aluminum sticks Includes measurement line to put 3 feet from singles line. Note: Larger items like court equipment and tennis ball machines (often made to order) may not be in stock at our Baltimore warehouse. These items are carefully packaged and shipped directly from the manufacturer. Please give us a call if you'd like to pick this item up from our store so we can check availability and prepare your order.