Spring loaded counter balance

Spring Balancer 3 To 5Kg Load Bearing Retractable Tool Fixture Holder Hanging with Fittings

Spring Loaded Thrust Meter Lab Dynomometer Balance Newton Force Spring Scale

Spring Balancer Tool 0.6~2kg/1.5~3kg Load Capacity Retractable Spring Balancer Holder with Positioner for Assembly Line

Spring Balancer 3-5kg Load Bearing Self Locking Retractable Tool Holder with 1.9m Wire Rope and Hook

Spring Balancer Heavy Duty 0.5-1.5kg Load Bearing Practical High Performance Tool Fixtures Holder

3 Pcs Spring Nail Carbon Steel Spring Loaded Design 3500PSI Shock S Nail Set and Counter Punch for Wood Metal Glass