He has also shown the ability to allow others to shrink down with him if the situation requires it, such as when he shrank himself, Superman, Flash, Green Lantern, Wonder Woman and Plastic Man to repair the links between seven shattered subatomic particles, or shrinking Steel, Supergirl and Superboy to directly treat a kryptonite tumor in Superman's body. However, this ability is relatively limited; initially anyone other than himself who was shrunk would explode after two minutes if not returned to their normal size, although by the time he sent Superman's allies into the Man of Steel, he was able to extend this time to around an hour.