DESCRIPTION :standard sizeAlloy SteelWeight:108gSuitable forNEMA17 Stepper Motor 42mmPackage:1 x Alloy Steel Mounting Bracket For 42mm NEMA17 Stepper MotorNOTICEAny question feel free to contact us and we will try our best to help.Please kindly do not leave any neutral or negative feedback before contacting us.Thank you!