[Fast And Accurate Hitting Measurements]: Our belt tension gauges are clearly marked with easy to read markings to help you quickly, easily, and accurately measure belt tension to aid in your vehicle adjustments and extend the life of your belts. [Universal Belt Tension Gauge]: This belt tension in gauge can be used on any vehicle, ATV or motorcycle with an auxiliary fer belt and a 10 lb. weight, etc for motorcycle belt replacement, adjustment or repair. [U Bracket]: This universal belt tension gauge has a universal U bracket designed to hold the belt firmly in place while you adjust the tension, helping to reduce friction when tensioning the belt properly to extend the life of the belt. How to use our belt tension gauge? 1. Position the small O ring over the 10 pounds mark. 2. Position the U shaped belt stand against the bottom of the belt at a 90 degree angle and locate the large O ring to a reference point, record reading. 3. Push upward on the rubber bumper until the small O ring touches the bottom of the tool body. 4. Realign the large O ring to the reference point;difference in the reading is the belt deflection. name:Belt Tension Gauge Material: Metal + plastic Color: As Shown Package Contents: 1 x Belt Tension Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.