Custom Flat Bridge goes from one end of the cage to the other it connects at the ends to both sides of the cage. Especially great for disabled birds so they will not have to balance on a round surface. All bridges are made to order. The cage length varies by maker and bird type. So we need the exact measurement of the INSIDE of the cage and the type of bird to make sure it is the right width. Prices may change depending on the size of your cage.