Dimensions: 2.25W x 4.75D x 5.75H in.. Constructed of metal. Gray finish. Replaces lawn mowers blade balancers. Insures smoother and better cutting. Keep your lawn mower blades perfectly balanced with the Maxpower 339076 Blade Balancer. This top-quality lawn mower part is constructed of metal and given a gray finish that protects the metal. When you use this balancer in your mower, your blade will spin easier and cut more smoothly than ever before.