Pole stopper, 2 sets of 2 per bag, 4 total, non-slip and strong spring loaded to secure it to the rod. Secures both sides of rod hooks. Prevents rod from moving or falling off due to wind. Size of 1 piece: Approx. 2.6 x 2.6 x 0.6 inches (65 x 66 x 15 mm). Color cannot be specified.