Features 1、Appearance oxidation treatment, beautiful and corrosion resistant, suitable for various electronic equipment, guide rods and pillars. 2、Aluminum alloy linear ball bearing slider unit, aluminum alloy material, strong bearing capacity. 3、The linear guide slider prevents dust from entering and prolongs the service life. 4、TBR16UU Linear Guide Slider has the characteristics of high hardness, high strength, high lead, low noise and rust prevention. 5、Glossy movement, low friction, good wear resistance, lightweight shell and chrome steel bearing ball. Specification Item Type: TBR16UU Linear Guide Slider Material: Aluminum Alloy Inner Diameter: Approx. 16mm / 0.63in Length: Approx. 63mm / 2.48in Width: Approx. 42mm / 1.65in Height: Approx. 30mm / 1.18in Package List 1 x Bearing