Abstract: A trailer alignment backing aid for vehicles that includes a target sticker and a hitch ball attachable aiming tube assembly. The target sticker has aiming indicia provided on a front surface thereof and an adhesive covered back surface having a peel off backing cover. The hitch ball attachable aiming tube assembly includes a ball attachment tube and an extender tube. The ball attachment tube includes two ball insertion flaps at a lower end thereof, a trailer tongue insertion window adjacent to the ball insertion flaps, and incremental measuring marks along the length thereof. The two ball insertion flaps are sized and spaced to resiliently grip the ball of a ball hitch and maintain the hitch ball attachable aiming tube assembly in an upright position during use.