Material: CNC Machined T6061 aluminum with ABS plastics (durable and light in weight). Package Included 1 set of guard (left + right), 1 pair of shorter extend , 2 allen keys. Fitment: Universally suitable to 7/8 inch (22mm) Diameter Handle Bar. Suitable for most standard 7/8" handle Hollow bar (please read description before buy). The dual sided design will protect not only your levers from rider contact but also keep your hands protected during a crash.. To US continental: Takes only 4-10 working days for delivery by Tracked service. Amazon Shipping Table give poor estimation on ETA. If you are located outside US, please feel free to message us for an accurate shipping time..