The V-Slide dolly system is ideal for all snowmobiles and fits all ski widths. Our dollies come with "Easy Roll" casters for both the front and rear plates. These casters have oversized 3" wheels with two ply construction and a sintered steel center bushing. This makes the wheels both tough and easy to move. In side by side comparisons our V-Slide system reduced pushing effort by 50%. Our heavy-duty front plates have double lock straps to assure that the ski stays firmly attached on any surface or direction. The front plates measure approximately 8" long x 10" wide x 4" tall. The rear plate measures approximately 8" across x 4" tall.