Feature:1. Used for grass sharpeners, drills, lawn mowers, blade cutters, tillers, hoes, etc.2. Made of high quality ABS material, nontoxic, impact resistant, sturdy and durable, long service life.3. Blade balancer is good for your lawn mower through an easier sharpening.4. The structure is simple and practical, and the blade balance of the lawn mower can be quickly tested.5. A good accessory, suitable for your outdoor, garden, home, farm work.Specification:Item Type: Blade BalancerMaterial: ABSColor: GrayProduct Size: Approx.50x60mm / 1.97x2.36inWeight: Approx. 14g / 0.5ozApplication: When the lawn mower blade is polished and tested for balance, you can select the steps of different diameters on the blade holder according to the blades of different apertures for testing. It is easy to see which end of the blade is lighter and which end is heavier, and the heavier end is re-ground Until the weights at both ends are the same, the blade balancer has a simple structure and good practicability, and can quickly test the blade balance of the lawn mower..Package List:1 x Blade Balancer1 x LidNote:1. Please allow 1‑2in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.