Patent ID: 7927256

Claim:
A kit for providing alternative adjustability to an aerobic exercise device including: (a) a platform having a substantially flat top surface and a bottom defining a recess, and (b) a pair of riser blocks having top faces matingly engageable with the bottom of the platform to elevate the platform above a support surface so that the top surface of the platform extends above the support surface, the kit comprising a pair of inclined riser blocks, each inclined riser block comprising: (a) a top face with at least one protrusion forming an interlocking surface matingly engageable with the recess defined by the bottom of the platform whereby the top face stably supports the platform; (b) a bottom face matingly engageable with the top face of a respective riser block; (c) a central portion extending between the top and bottom faces of the inclined riser block and having a front and a rear, the central portion increasing in thickness from the front to the rear; and (d) whereby the top face extends at an incline with respect to the bottom face so that the top surface of the platform can be inclined relative to the support surface, and wherein the inclined riser blocks are matingly engageable with the bottom of the platform at two alternative positions of the inclined riser blocks to incline the platform alternatively along a width or a length of the platform.