MINOURA MagRiser 3 For Bicycle Trainer mag riser

• FITS UNDER FRONT WHEEL TO LEVEL THE BIKE TO GET NATURAL RIDING ON TRAINING
• DOUBLE GROOVED DESIGN FITS YOUR NARROW OR WIDE TIES
• POLYETHYLENE MATERIAL MINIMIZES WEIGHT AT 1/2 LB.
• 8.6" D X 4.7" W X 2.75" H
• AVAILABLE IN BULK OR WITH HEADER TAG