The bridles are intentionally different lengths to allow the trampoline to flag and rotate with the wind on the bridle. The longer bridle arms give the tramp leverage to rotate the swivel instead of twisting up the bridles. When the bridles are the same length, the bridle twists up. The bridle should be installed with alternating colors - so the two blues are across from one another, and the two blacks are across from one another. There are 4 anchor ring connection points on the bottom of the trampoline that these bridle arms connect to.