Stubbs Up & Over S523Combined mounting block and pole block, what a masterful design with real practical appeal. Based on the most successful mountie, this three step version is perfect for getting on the larger horse and also schooling when you are on your own. Shallow cups moulded into both sides of all three steps allow creation of a training triple jump. Usual simple rope handle on both sides for easy, lightweight handling. Simple to nest, it also has a slip resistant