set Edge Collider 2D to the borders of the camera's viewport

hey im trying to set an edge collider to the border of the camer's view port so things won't just fly off the screen. I know i can just take 4 box coliiders but i want it to be able to adapt to the screen size and be a clean. here is what i have got so far: var rect = cam.rect; EdgeCollider2D col = GetComponent<EdgeCollider2D>(); transform.position = cam.ViewportToWorldPoint(new Vector3(1, 1, cam.nearClipPlane)) *cam.fieldOfView; Vector2[] points = new Vector2[5]; points[0] = new Vector2( 0, 0); points[1] = new Vector2(rect.xMax,0); points[2] = new Vector2(rect.xMax, rect.yMax); points[3] = new Vector2(0, rect.yMax); points[4] = new Vector2(0, 0); col.points = points;