Lawn Mower Blade Balancer: Overall Dimensions: 60 x 50mm/2.36 x 1.97inch(D*H); Package Contents: 5 x Lawn Mower Blade Balancers. DURABLE PLASTIC CONSTRUCTION: Made of durable ABS plastic and featuring a base with a center pin and stepped cone, the blade balancer is lightweight yet strong enough to withstand regular use. UNIVERSAL COMPATIBILITY: The balancer is designed to be universal and fits most electric and hand drills, making it a versatile tool for lawn mower blade maintenance. EASY TO USE: When using, connect the lawn mower blade to the balancer, and then install the assembly on an electric drill or hand drill, which ensures that the lawn mower blade sharpener remains balanced while allowing you to confirm that the blade is not bent to adjust the lawn mower. IDEAL FOR LAWN MAINTENANCE: The balancer Lawn mower blade is suitable for outdoor use, home garden maintenance, garden lawn, shrubs and more.