Mister Fantastic possesses the ability to convert the mass of his entire body into a highly malleable state at will. In such a state, he can stretch, deform, expand, or compress his entire body or parts thereof into any contiguous shape he can imagine. He can extend his limbs, torso, or neck to great distances: the maximum length he can distend before his body segments become painful is about 1,500 feet. (Although he can extend discrete body parts, such as a single finger, an ear, or an eye, he seldom if ever isolates such parts in his elongations.) He can also extend his body in two directions, creating a canopy, parachute, or sheath, its thickness determined by the extent of its distention. He has compressed his body into the shape of a solid sphere, a cylinder, a cube, a toroid, and a rectangular prism: he can assume the shape of any solid that he can envision clearly, of a volume no greater than 1.7 cubic feet (a sphere about 18 inches in diameter). He can generate thin-walled shapes that enclose great volumes of space. Mister Fantastic can flatten himself to the thickness of an average sheet of typing paper (.0035 inch) or narrow himself to a diameter small enough to pass through the eye of a #10 beading needle (about .045 x .06 inches). How his body's respiration and circulatory systems function at these distorted extremes is as yet unknown. Mister Fantastic can alter his form in a matter of seconds, often much less (depending on the complexity of the shape), and revert to his normal humanoid shape within a similar time. The greater the distance he stretches or the more extended the size of the object he becomes, the weaker his overall strength becomes.  (Normal changes take a move action)