This product is used to fix the pole of the canopy and the pole of the tent, which can effectively prevents the pole from shaking and make the canopy / tent more stable. Features: Double side ground nail holes, two ground nails(not included) can be inserted, which is more stable. Built in copper core, without damaging the pole. Adjustable nut, which can accommodate rods of different thicknesses. The nut is detacheable for easy carrying and storage. Made of fine quality aluminum alloy, lightweight and beautiful, firm and not easy to wear. Specifications: Color: black Material: aluminum alloy+copper Suitable rod diameter: 25-33mm Item size: 100 * 67 * 50mm / 3.5 * 2.6 * 2.0in Item weight: 158g / 5.6ounce Package size: 100 * 67 * 50mm / 3.5 * 2.6 * 2.0in Package weight: 163g / 5.7ounce Packing List: 1 * Fixed Tube