Description:E-clips, also known as "e-rings," are used to secure parts onto a shaft. They fit into grooves in the side of the shaft for a snug fit. E-clips come in different types depending on specific application needs.Specifications:Outer Dia.:3mm/0.12inch;Inner Dia. : 0.9mm/0.04inch;Thickness (t): 0.3mm/0.01inch;Material: Carbon Steel Color: Black Package Includes:30 Pcs x E-Clip