Abstract: A detachable and foldable wheelchair frame rigidizing device. A pair of opposing top surfaces each includes one of a pair of opposing bottom surfaces and a cut-out pattern forming finger elements extending beyond each opposing bottom surface. The finger elements are arranged in an alternating interlocking fashion such that when the opposing top surfaces are folded together to form a planar surface the finger elements fit closely together and the opposing bottom surfaces are sized to extend beyond each of their respective top surfaces to support at least a portion of each of the finger elements from the opposing top surface when in an unfolded position. Frame attachments are attached to the perimeter of the opposing bottom surfaces. A hinge is centrally positioned to join the finger elements from each opposing top surface.