DIY Steel Rubber Shock Absorber Stepper Vibration Damper For Nema17 3D'PrinterS*,Stepper Vibration Damper For Nema17 3D'PrinterS* DIY Steel Rubber Shock Absorber, Made of steel and rubber material,durable and practical, Material: Steel+Rubber,This Damper is used to reduce noise and vibration for Nema 17 stepper motor on your 3D Printer.3D'PrinterS* DIY Steel Rubber Shock Absorber Stepper Vibration Damper For Nema17.