SALE PRICE on NEW Premium Set of 2 (two) NordicTrack Ski Machine Replacement Center 1-lb POLY DRIVE ROLLERS Original USA Built Skier Models; Pro - Achiever - 15th & 20th Anniversary - Medalist - Elite - Sequoia / 303- Excel / 505- Black Challenger + MOREOur Exclusive Next Generation RED 5. 0 ships within 24 ~ 48 hours! Our 1 pound Solid Drive Roller with a SMOOTH FEEL & SURE "CATCH & STRIDE" SALE Price for a Set of 2 (Two) $30. 00 OFF. SAVE by Ordering TODAY!! Fit All Standard Original USA built NordicTrack PSI Ski Machines! 2. 355" height OEM 1975 thru 1997. See ski machine model names these FIT Below! Please Inquire on other model sizes available; Pro PLUS models, Various Sport Models with smaller