The bar can be freely adjusted from 7.9 to 43.3 inches (20 to 110 cm), and you can check the memory of the pole.In addition, the bar is just placed on the clip, so you can rest assured that it will hit your body. Start with a low position and get it taller as you get used to it.Dogs love jumping so they are the most maneuverable obstacles. Combine with other obstacles, slalom and tunnels for a more hands-on and effective practice. There are several jump obstacles in competitions, so if you are considering to get a listing, please practice it to ensure that the size of your dog. In competitions, the height of the bar can vary depending on your partners height. Small size (body height under 13.8 inches (35 cm)): 9.8 - 11.8 inches (25 - 30 cm); Medium size (body height under 17.8 inches (35 - 43 cm); Large size (body height 17.0 - 23.6 inches (43 cm)): 21.6 - 23.6 inches (5 inches (5 inches (5 inches (5 inches (5 inches (5 inches (60 cm); *Japan KC).