Features 1、Removable Design: This V groove track roller has a removable design with 9mm mounting holes attached to the base, it's very easy to install and remove, you just need to use screws to fix it. 2、Excellent Galvanized Alloy Steel Material: This V groove wheel is made of excellent galvanized alloy steel material, which is sturdy and abrasion resistant, not easy to be damaged, and outdoor use can also prevent the pulley from erosion and rust. 3、Good Performance: This V type groove sliding wheel roller has good performance, the internal bearing can reduce the friction with the wheel, steady and flexible, maneuverability, which is very practical. 4、Wide Application: This V groove wheel pulley has a wide range of applications for motorized doors, industrial carts, assembly fixtures, containers, shelves, and other sling equipment and items. 5、Strong Load Bearing: This track rail fixed pulley has 38mm diameter and 150kg load bearing, it can be used to lift heavier items, it can be used in industry, transportation and other industries, it is very practical, secure and reliable. Specification Item Type: V Groove Wheel Pulley Material: Galvanized Alloy Steel Pulley Diameter: Approx. 38mm / 1.5in Load Capacity: Approx. 150kg / 330.7lb Mounting Hole Diameter: Approx. 9mm / 0.35in Package List 2 x V Groove Wheel Pulley