We are sourcing for replacement 32 mm Polyurethane molded bearing roller wheels that were used on a CSA Skier Exerciser Machines that comprised eight 32 mm wheels (4 wheels rotating in each shoe that glides in an extruded aluminum track). These wheels are produced in Taiwan and are used in a variety of fitness equipment as they are OFF THE SHELF wheels. I can email you pictures and drawings with specifications. Please find the attached Pictures and Drawings Specs for both with bearings. We are looking for a quantity of 800 then if all is well 2000 to 3000 then 1000 per year for the next 5 years. Please offer the best price and lead-time base on 800 pcs for the trial order. We would be appreciated for your formal quotation along with your latest product catalog and looking forward to your fast response.